diff --git a/mods/CORE/mcl_damage/init.lua b/mods/CORE/mcl_damage/init.lua
index 773e7a43e..8804b8561 100644
--- a/mods/CORE/mcl_damage/init.lua
+++ b/mods/CORE/mcl_damage/init.lua
@@ -155,7 +155,6 @@ end, true)
 minetest.register_on_player_hpchange(function(player, hp_change, mt_reason)
 	if not damage_enabled then return 0 end
 	if player:get_hp() > 0 then
-		mt_reason.approved = true
 		if hp_change < 0 then
 			mcl_damage.run_damage_callbacks(player, -hp_change, mcl_damage.from_mt(mt_reason))
 		end
@@ -163,9 +162,7 @@ minetest.register_on_player_hpchange(function(player, hp_change, mt_reason)
 end, false)
 
 minetest.register_on_dieplayer(function(player, mt_reason)
-	if mt_reason.approved then
-		mcl_damage.run_death_callbacks(player, mcl_damage.from_mt(mt_reason))
-	end
+	mcl_damage.run_death_callbacks(player, mcl_damage.from_mt(mt_reason))
 	minetest.log("action","Player "..player:get_player_name().." died at "..minetest.pos_to_string(vector.round(player:get_pos())))
 end)
 
diff --git a/mods/ENTITIES/mcl_mobs/api.lua b/mods/ENTITIES/mcl_mobs/api.lua
index 05c6ed9c6..f5e50ba2a 100644
--- a/mods/ENTITIES/mcl_mobs/api.lua
+++ b/mods/ENTITIES/mcl_mobs/api.lua
@@ -335,24 +335,27 @@ function mob_class:on_step(dtime)
 
 	if self:check_despawn(pos, dtime) then return true end
 
-	self:slow_mob()
+	if self:check_death_and_slow_mob() then
+		--minetest.log("action", "Mob is dying: ".. tostring(self.name))
+		-- Do we abandon out of here now?
+	end
+
 	if self:falling(pos) then return end
 	self:check_suspend()
 
-	self:check_water_flow()
-
-	self:env_danger_movement_checks (dtime)
-
 	if not self.fire_resistant then
 		mcl_burning.tick(self.object, dtime, self)
 		-- mcl_burning.tick may remove object immediately
 		if not self.object:get_pos() then return end
 	end
 
-	if mobs_debug then self:update_tag() end
-
 	if self.state == "die" then return end
 
+	self:check_water_flow()
+	self:env_danger_movement_checks (dtime)
+
+	if mobs_debug then self:update_tag() end
+
 	self:follow_flop() -- Mob following code.
 
 	self:set_animation_speed() -- set animation speed relitive to velocity
diff --git a/mods/ENTITIES/mcl_mobs/combat.lua b/mods/ENTITIES/mcl_mobs/combat.lua
index 1886c7ccc..b7d176855 100644
--- a/mods/ENTITIES/mcl_mobs/combat.lua
+++ b/mods/ENTITIES/mcl_mobs/combat.lua
@@ -746,7 +746,7 @@ function mob_class:on_punch(hitter, tflp, tool_capabilities, dir)
 
 	local name = hitter:get_player_name() or ""
 
-	-- attack puncher and call other mobs for help
+	-- attack puncher
 	if self.passive == false
 	and self.state ~= "flop"
 	and (self.child == false or self.type == "monster")
@@ -758,37 +758,37 @@ function mob_class:on_punch(hitter, tflp, tool_capabilities, dir)
 			self:do_attack(hitter)
 			self._aggro= true
 		end
+	end
 
-		-- alert others to the attack
-		local objs = minetest.get_objects_inside_radius(hitter:get_pos(), self.view_range)
-		local obj = nil
+	-- alert others to the attack
+	local objs = minetest.get_objects_inside_radius(hitter:get_pos(), self.view_range)
+	local obj = nil
 
-		for n = 1, #objs do
+	for n = 1, #objs do
 
-			obj = objs[n]:get_luaentity()
+		obj = objs[n]:get_luaentity()
 
-			if obj then
-				-- only alert members of same mob or friends
-				if obj.group_attack
-				and obj.state ~= "attack"
-				and obj.owner ~= name then
-					if obj.name == self.name then
-						obj:do_attack(hitter)
-					elseif type(obj.group_attack) == "table" then
-						for i=1, #obj.group_attack do
-							if obj.name == obj.group_attack[i] then
-								obj._aggro = true
-								obj:do_attack(hitter)
-								break
-							end
+		if obj then
+			-- only alert members of same mob or friends
+			if obj.group_attack
+			and obj.state ~= "attack"
+			and obj.owner ~= name then
+				if obj.name == self.name then
+					obj:do_attack(hitter)
+				elseif type(obj.group_attack) == "table" then
+					for i=1, #obj.group_attack do
+						if obj.group_attack[i] == self.name then
+							obj._aggro = true
+							obj:do_attack(hitter)
+							break
 						end
 					end
 				end
+			end
 
-				-- have owned mobs attack player threat
-				if obj.owner == name and obj.owner_loyal then
-					obj:do_attack(self.object)
-				end
+			-- have owned mobs attack player threat
+			if obj.owner == name and obj.owner_loyal then
+				obj:do_attack(self.object)
 			end
 		end
 	end
diff --git a/mods/ENTITIES/mcl_mobs/movement.lua b/mods/ENTITIES/mcl_mobs/movement.lua
index df00a42a7..758e74467 100644
--- a/mods/ENTITIES/mcl_mobs/movement.lua
+++ b/mods/ENTITIES/mcl_mobs/movement.lua
@@ -279,6 +279,7 @@ function mob_class:env_danger_movement_checks(dtime)
 			yaw = self:set_yaw( yaw, 8)
 		end
 	else
+		-- This code should probably be moved to movement code
 		if self.move_in_group ~= false then
 			self:check_herd(dtime)
 		end
diff --git a/mods/ENTITIES/mcl_mobs/physics.lua b/mods/ENTITIES/mcl_mobs/physics.lua
index 0617fd1e8..c7ea98c57 100644
--- a/mods/ENTITIES/mcl_mobs/physics.lua
+++ b/mods/ENTITIES/mcl_mobs/physics.lua
@@ -47,7 +47,8 @@ end
 
 function mob_class:player_in_active_range()
 	for _,p in pairs(minetest.get_connected_players()) do
-		if vector.distance(self.object:get_pos(),p:get_pos()) <= mob_active_range then return true end
+		local pos = self.object:get_pos()
+		if pos and vector.distance(pos, p:get_pos()) <= mob_active_range then return true end
 		-- slightly larger than the mc 32 since mobs spawn on that circle and easily stand still immediately right after spawning.
 	end
 end
@@ -182,15 +183,17 @@ function mob_class:collision()
 	return({x,z})
 end
 
-function mob_class:slow_mob()
+function mob_class:check_death_and_slow_mob()
 	local d = 0.85
-	if self:check_dying() then d = 0.92 end
+	local dying = self:check_dying()
+	if dying then d = 0.92 end
 
 	local v = self.object:get_velocity()
 	if v then
 		--diffuse object velocity
 		self.object:set_velocity({x = v.x*d, y = v.y, z = v.z*d})
 	end
+	return dying
 end
 
 -- move mob in facing direction
@@ -519,17 +522,16 @@ function mob_class:check_for_death(cause, cmi_cause)
 
 	self:set_velocity(0)
 	local acc = self.object:get_acceleration()
-	acc.x, acc.y, acc.z = 0, DEFAULT_FALL_SPEED, 0
-	self.object:set_acceleration(acc)
+	if acc then
+		acc.x, acc.y, acc.z = 0, DEFAULT_FALL_SPEED, 0
+		self.object:set_acceleration(acc)
+	end
 
 	local length
 	-- default death function and die animation (if defined)
 	if self.instant_death then
 		length = 0
-	elseif self.animation
-	and self.animation.die_start
-	and self.animation.die_end then
-
+	elseif self.animation and self.animation.die_start and self.animation.die_end then
 		local frames = self.animation.die_end - self.animation.die_start
 		local speed = self.animation.die_speed or 15
 		length = math.max(frames / speed, 0) + DEATH_DELAY
@@ -545,7 +547,6 @@ function mob_class:check_for_death(cause, cmi_cause)
 		if not self.object:get_luaentity() then
 			return
 		end
-
 		death_handle(self)
 		local dpos = self.object:get_pos()
 		local cbox = self.collisionbox
@@ -554,6 +555,7 @@ function mob_class:check_for_death(cause, cmi_cause)
 		self.object:remove()
 		mcl_mobs.death_effect(dpos, yaw, cbox, not self.instant_death)
 	end
+
 	if length <= 0 then
 		kill(self)
 	else
@@ -870,33 +872,32 @@ function mob_class:falling(pos)
 
 	-- floating in water (or falling)
 	local v = self.object:get_velocity()
+	if v then
+		if v.y > 0 then
+			-- apply gravity when moving up
+			self.object:set_acceleration({
+				x = 0,
+				y = DEFAULT_FALL_SPEED,
+				z = 0
+			})
 
-	if v.y > 0 then
-
-		-- apply gravity when moving up
-		self.object:set_acceleration({
-			x = 0,
-			y = DEFAULT_FALL_SPEED,
-			z = 0
-		})
-
-	elseif v.y <= 0 and v.y > self.fall_speed then
-
-		-- fall downwards at set speed
-		self.object:set_acceleration({
-			x = 0,
-			y = self.fall_speed,
-			z = 0
-		})
-	else
-		-- stop accelerating once max fall speed hit
-		self.object:set_acceleration({x = 0, y = 0, z = 0})
+		elseif v.y <= 0 and v.y > self.fall_speed then
+			-- fall downwards at set speed
+			self.object:set_acceleration({
+				x = 0,
+				y = self.fall_speed,
+				z = 0
+			})
+		else
+			-- stop accelerating once max fall speed hit
+			self.object:set_acceleration({x = 0, y = 0, z = 0})
+		end
 	end
 
+	local acc = self.object:get_acceleration()
+
 	if minetest.registered_nodes[node_ok(pos).name].groups.lava then
-
-		if self.floats_on_lava == 1 then
-
+		if acc and self.floats_on_lava == 1 then
 			self.object:set_acceleration({
 				x = 0,
 				y = -self.fall_speed / (math.max(1, v.y) ^ 2),
@@ -907,9 +908,7 @@ function mob_class:falling(pos)
 
 	-- in water then float up
 	if minetest.registered_nodes[node_ok(pos).name].groups.water then
-
-		if self.floats == 1 then
-
+		if acc and self.floats == 1 then
 			self.object:set_acceleration({
 				x = 0,
 				y = -self.fall_speed / (math.max(1, v.y) ^ 2),
@@ -917,10 +916,8 @@ function mob_class:falling(pos)
 			})
 		end
 	else
-
 		-- fall damage onto solid ground
-		if self.fall_damage == 1
-		and self.object:get_velocity().y == 0 then
+		if self.fall_damage == 1 and self.object:get_velocity().y == 0 then
 			local n = node_ok(vector.offset(pos,0,-1,0)).name
 			local d = (self.old_y or 0) - self.object:get_pos().y
 
@@ -981,24 +978,31 @@ end
 function mob_class:check_dying()
 	if ((self.state and self.state=="die") or self:check_for_death()) and not self.animation.die_end then
 		local rot = self.object:get_rotation()
-		rot.z = ((math.pi/2-rot.z)*.2)+rot.z
-		self.object:set_rotation(rot)
+		if rot then
+			rot.z = ((math.pi/2-rot.z)*.2)+rot.z
+			self.object:set_rotation(rot)
+		end
 		return true
 	end
 end
 
 function mob_class:check_suspend()
-	if not self:player_in_active_range() then
-		local pos = self.object:get_pos()
+	local pos = self.object:get_pos()
+
+	if pos and not self:player_in_active_range() then
 		local node_under = node_ok(vector.offset(pos,0,-1,0)).name
-		local acc = self.object:get_acceleration()
+
 		self:set_animation( "stand", true)
-		if acc.y > 0 or node_under ~= "air" then
-			self.object:set_acceleration(vector.new(0,0,0))
-			self.object:set_velocity(vector.new(0,0,0))
-		end
-		if acc.y == 0 and node_under == "air" then
-			self:falling(pos)
+
+		local acc = self.object:get_acceleration()
+		if acc then
+			if acc.y > 0 or node_under ~= "air" then
+				self.object:set_acceleration(vector.new(0,0,0))
+				self.object:set_velocity(vector.new(0,0,0))
+			end
+			if acc.y == 0 and node_under == "air" then
+				self:falling(pos)
+			end
 		end
 		return true
 	end
diff --git a/mods/ENTITIES/mobs_mc/iron_golem.lua b/mods/ENTITIES/mobs_mc/iron_golem.lua
index 7ca4dd88a..34a7a511c 100644
--- a/mods/ENTITIES/mobs_mc/iron_golem.lua
+++ b/mods/ENTITIES/mobs_mc/iron_golem.lua
@@ -15,7 +15,7 @@ mcl_mobs.register_mob("mobs_mc:iron_golem", {
 	description = S("Iron Golem"),
 	type = "npc",
 	spawn_class = "passive",
-	passive = true,
+	passive = false,
 	hp_min = 100,
 	hp_max = 100,
 	breath_max = -1,
@@ -42,7 +42,7 @@ mcl_mobs.register_mob("mobs_mc:iron_golem", {
 	damage = 14,
 	knock_back = false,
 	reach = 3,
-	group_attack = true,
+	group_attack = { "mobs_mc:villager" },
 	attacks_monsters = true,
 	attack_type = "dogfight",
 	_got_poppy = false,
diff --git a/mods/HUD/mcl_base_textures/textures/crack_anylength.png b/mods/HUD/mcl_base_textures/textures/crack_anylength.png
index 07e5df8fd..7ddede00d 100644
Binary files a/mods/HUD/mcl_base_textures/textures/crack_anylength.png and b/mods/HUD/mcl_base_textures/textures/crack_anylength.png differ
diff --git a/mods/HUD/mcl_death_messages/init.lua b/mods/HUD/mcl_death_messages/init.lua
index 13ed23668..00de9228c 100644
--- a/mods/HUD/mcl_death_messages/init.lua
+++ b/mods/HUD/mcl_death_messages/init.lua
@@ -1,5 +1,7 @@
 local S = minetest.get_translator(minetest.get_current_modname())
 
+local ASSIST_TIMEOUT_SEC = 5
+
 mcl_death_messages = {
 	assist = {},
 	messages = {
@@ -181,8 +183,10 @@ local function get_killer_message(obj, messages, reason)
 end
 
 local function get_assist_message(obj, messages, reason)
-	if messages.assist and mcl_death_messages.assist[obj] then
-		return messages._translator(messages.assist, mcl_util.get_object_name(obj), mcl_death_messages.assist[obj].name)
+	-- Avoid a timing issue if the assist passes its timeout.
+	local assist_details = mcl_death_messages.assist[obj]
+	if messages.assist and assist_details then
+		return messages._translator(messages.assist, mcl_util.get_object_name(obj), assist_details.name)
 	end
 end
 
@@ -232,20 +236,17 @@ mcl_damage.register_on_death(function(obj, reason)
 end)
 
 mcl_damage.register_on_damage(function(obj, damage, reason)
-	if obj:get_hp() - damage > 0 then
-		if reason.source then
-			mcl_death_messages.assist[obj] = {name = mcl_util.get_object_name(reason.source), timeout = 5}
-		else
-			mcl_death_messages.assist[obj] = nil
+	if (obj:get_hp() - damage > 0) and reason.source and
+			(reason.source:is_player() or obj:get_luaentity()) then
+		-- To avoid timing issues we cancel the previous job before adding a new one.
+		if mcl_death_messages.assist[obj] then
+			mcl_death_messages.assist[obj].job:cancel()
 		end
-	end
-end)
 
-minetest.register_globalstep(function(dtime)
-	for obj, tbl in pairs(mcl_death_messages.assist) do
-		tbl.timeout = tbl.timeout - dtime
-		if not obj:is_player() and not obj:get_luaentity() or tbl.timeout > 0 then
+		-- Add a new assist object with a timeout job.
+		local new_job = minetest.after(ASSIST_TIMEOUT_SEC, function()
 			mcl_death_messages.assist[obj] = nil
-		end
+		end)
+		mcl_death_messages.assist[obj] = {name = mcl_util.get_object_name(reason.source), job = new_job}
 	end
 end)
diff --git a/mods/ITEMS/mcl_core/functions.lua b/mods/ITEMS/mcl_core/functions.lua
index 6ef9a86f9..19c56b4d3 100644
--- a/mods/ITEMS/mcl_core/functions.lua
+++ b/mods/ITEMS/mcl_core/functions.lua
@@ -809,7 +809,7 @@ function mcl_core.get_grass_palette_index(pos)
 		local biome_name = minetest.get_biome_name(biome)
 		local reg_biome = minetest.registered_biomes[biome_name]
 		if reg_biome then
-			index = reg_biome._mcl_palette_index
+			index = reg_biome._mcl_grass_palette_index
 		end
 	end
 	return index
@@ -939,7 +939,7 @@ minetest.register_lbm({
 				else
 					node.name = "mcl_core:dirt_with_grass"
 				end
-				node.param2 = reg_biome._mcl_palette_index
+				node.param2 = reg_biome._mcl_grass_palette_index
 				-- Fall back to savanna palette index
 				if not node.param2 then
 					node.param2 = SAVANNA_INDEX
diff --git a/mods/ITEMS/mcl_core/nodes_base.lua b/mods/ITEMS/mcl_core/nodes_base.lua
index 476bdf9ce..8c7d19e9e 100644
--- a/mods/ITEMS/mcl_core/nodes_base.lua
+++ b/mods/ITEMS/mcl_core/nodes_base.lua
@@ -373,7 +373,7 @@ minetest.register_node("mcl_core:dirt_with_grass", {
 	overlay_tiles = {"mcl_core_grass_block_top.png", "", {name="mcl_core_grass_block_side_overlay.png", tileable_vertical=false}},
 	palette = "mcl_core_palette_grass.png",
 	palette_index = 0,
-	color = "#8EB971",
+	color = "#7CBD6B",
 	is_ground_content = true,
 	stack_max = 64,
 	groups = {
diff --git a/mods/ITEMS/mcl_core/nodes_trees.lua b/mods/ITEMS/mcl_core/nodes_trees.lua
index 787faa6d7..0207b4ec1 100644
--- a/mods/ITEMS/mcl_core/nodes_trees.lua
+++ b/mods/ITEMS/mcl_core/nodes_trees.lua
@@ -35,7 +35,14 @@ function mcl_core.update_leaves(pos, oldnode)
 				-- manually placed leaf nodes have param2
 				-- set and will never decay automatically
 				if lnode.param2 == 0 then
-					minetest.swap_node(lpos, {name = lnode.name .. "_orphan"})
+					local orphan_name = lnode.name .. "_orphan"
+					local def = minetest.registered_nodes[orphan_name]
+					if def then
+						--minetest.log("Registered: ".. orphan_name)
+						minetest.swap_node(lpos, {name = orphan_name})
+					else
+						--minetest.log("Not registered: ".. orphan_name)
+					end
 				end
 			end
 		end
diff --git a/mods/ITEMS/mcl_farming/sweet_berry.lua b/mods/ITEMS/mcl_farming/sweet_berry.lua
index 8a91c0e79..7dc6326a4 100644
--- a/mods/ITEMS/mcl_farming/sweet_berry.lua
+++ b/mods/ITEMS/mcl_farming/sweet_berry.lua
@@ -107,7 +107,7 @@ local function berry_damage_check(obj)
 	if not p then return end
 	if not minetest.find_node_near(p,0.4,{"group:sweet_berry_thorny"},true) then return end
 	local v = obj:get_velocity()
-	if v.x < 0.1 and v.y < 0.1 and v.z < 0.1 then return end
+	if math.abs(v.x) < 0.1 and math.abs(v.y) < 0.1 and math.abs(v.z) < 0.1 then return end
 
 	mcl_util.deal_damage(obj, 0.5, {type = "sweet_berry"})
 end
diff --git a/mods/ITEMS/mcl_flowers/init.lua b/mods/ITEMS/mcl_flowers/init.lua
index d7b046cf5..0ea7f77ad 100644
--- a/mods/ITEMS/mcl_flowers/init.lua
+++ b/mods/ITEMS/mcl_flowers/init.lua
@@ -19,7 +19,7 @@ local get_palette_color_from_pos = function(pos)
 		local biome_name = minetest.get_biome_name(biome)
 		local reg_biome = minetest.registered_biomes[biome_name]
 		if reg_biome then
-			index = reg_biome._mcl_palette_index
+			index = reg_biome._mcl_grass_palette_index
 		end
 	end
 	return index
diff --git a/mods/MAPGEN/mcl_mapgen_core/init.lua b/mods/MAPGEN/mcl_mapgen_core/init.lua
index 03c5aeb13..470f2a8c6 100644
--- a/mods/MAPGEN/mcl_mapgen_core/init.lua
+++ b/mods/MAPGEN/mcl_mapgen_core/init.lua
@@ -280,8 +280,8 @@ local function set_palette(minp,maxp,data2,area,biomemap,nodes)
 		local bn = minetest.get_biome_name(biomemap[b_pos])
 		if bn then
 			local biome = minetest.registered_biomes[bn]
-			if biome and biome._mcl_biome_type then
-				data2[p_pos] = biome._mcl_palette_index
+			if biome and biome._mcl_biome_type and biome._mcl_grass_palette_index then
+				data2[p_pos] = biome._mcl_grass_palette_index
 				lvm_used = true
 			end
 		end
@@ -349,8 +349,8 @@ local function block_fixes(vm, data, data2, emin, emax, area, minp, maxp, blocks
 	local lvm_used = false
 	local pr = PseudoRandom(blockseed)
 	if minp.y <= mcl_vars.mg_overworld_max and maxp.y >= mcl_vars.mg_overworld_min then
-		-- Set param2 (=color) of sugar cane and grass
-		lvm_used = set_palette(minp,maxp,data2,area,biomemap,{"mcl_core:reeds","mcl_core:dirt_with_grass"})
+		-- Set param2 (=color) of nodes which use the grass colour palette.
+		lvm_used = set_palette(minp,maxp,data2,area,biomemap,{"mcl_core:dirt_with_grass", "mcl_flowers:tallgrass", "mcl_flowers:double_grass", "mcl_flowers:double_grass_top", "mcl_flowers:fern", "mcl_flowers:double_fern", "mcl_flowers:double_fern_top", "mcl_core:reeds", "mcl_core:dirt_with_grass_snow"})
 	end
 	return lvm_used
 end
@@ -417,3 +417,20 @@ mcl_mapgen_core.register_generator("structures",nil, function(minp, maxp, blocks
 	end
 	return false, false, false
 end, 100, true)
+
+minetest.register_lbm({
+	label = "Fix grass palette indexes",
+	name = "mcl_mapgen_core:fix_grass_palette_indexes",
+	nodenames = {"mcl_core:dirt_with_grass", "mcl_flowers:tallgrass", "mcl_flowers:double_grass", "mcl_flowers:double_grass_top", "mcl_flowers:fern", "mcl_flowers:double_fern", "mcl_flowers:double_fern_top", "mcl_core:reeds", "mcl_core:dirt_with_grass_snow"},
+	run_at_every_load = true,
+	action = function(pos, node)
+		local biome_data = minetest.get_biome_data(pos)
+		local biome = biome_data.biome
+		local biome_name = minetest.get_biome_name(biome)
+		local reg_biome = minetest.registered_biomes[biome_name]
+		if node.param2 ~= reg_biome._mcl_grass_palette_index then
+			node.param2 = reg_biome._mcl_grass_palette_index
+			minetest.set_node(pos, node)
+		end
+	end,
+})