IloveEmeralds

Alright this is seemingly resolved for now... Thanks a ton, so if I wanted to create another skull that always stacks would I simply create it then replace the skull owner with the extra long command and all that jazz?

Okay, the command works and sucessfully spawns in a scout with the correct head and it stacks, as do the others. But here is the question that I will let you know, if I leave the head in a chest travel somewhere else, wait a while then obtain a new one will they stack with the old? I will update that shortly. Thanks for your help!

I tried to copy the skull owner tag from the tests and input them into the skull owner portion of the command. This dosent seem to work, instead the mob just spawns with a Steve head and not the orc head it should have.

/summon Skeleton ~ ~1 ~ {CustomName:"Bonesplitter Scout",CustomNameVisible:1,ArmorItems:[{id:leather_boots,Count:1,tag:{display:{color:4653056}}},{id:leather_leggings,Count:1,tag:{display:{color:4653056}}},{id:leather_chestplate,Count:1,tag:{display:{color:4653056}}},{id:skull,Damage:3,Count:1,tag:{display:{Name:"Orc Skull",Lore:[The head of an Orc]},SkullOwner:chayseboi24}}],HandItems:[{id:bow,Count:1,tag:{ench:[{id:48,lvl:1},{id:49,lvl:1}]}},{id:stone_axe,Count:1}],ArmorDropChances:[0.0F,0.0F,0.0F,1.0F],HandDropChances:[0.0F,0.0F],Attributes:[{Name:generic.maxHealth,Base:20}],PersistenceRequired:1}

Here is the summon used.

In response to SunCat:
first test:

[19:37:21] The data tag did not change: {Motion:[0:1.5824100265939025E-20d,1:-0.0d,2:-5.547105165038869E-21d],UUIDLeast:-5262989687309559405L,Health:5s,Invulnerable:0b,Air:300s,OnGround:1b,Dimension:0,PortalCooldown:0,Rotation:[0:285.14404f,1:0.0f],Thrower:"fracerman",FallDistance:0.0f,Item:{id:"minecraft:skull",Count:1b,tag:{SkullOwner:{Id:"e712743c-e063-4174-b0e3-2607fc391e47",Properties:{textures:[0:{Signature:"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",Value:"eyJ0aW1lc3RhbXAiOjE0NTg4NzI0MTI2NjEsInByb2ZpbGVJZCI6ImU3MTI3NDNjZTA2MzQxNzRiMGUzMjYwN2ZjMzkxZTQ3IiwicHJvZmlsZU5hbWUiOiJjaGF5c2Vib2kyNCIsInNpZ25hdHVyZVJlcXVpcmVkIjp0cnVlLCJ0ZXh0dXJlcyI6eyJTS0lOIjp7InVybCI6Imh0dHA6Ly90ZXh0dXJlcy5taW5lY3JhZnQubmV0L3RleHR1cmUvZTI2YmRkNTVhYWU5NTM1NTc4OGNjZDEzZjZmMDFjMWY4MTUwNWQ1NzYxNTM1Y2I1ZjliYTQ3MGJkMTU4N2Y3IiwibWV0YWRhdGEiOnsibW9kZWwiOiJzbGltIn19fX0="}]},Name:"chayseboi24"},display:{Lore:[0:"The head of an Orc"],Name:"Orc Skull"}},Damage:3s},UUIDMost:4220461836036622374L,Pos:[0:145.99002381689698d,1:6.0d,2:1000.1594410282656d],PickupDelay:0s,Fire:-1s,Age:92s}

second test:

[19:38:30] The data tag did not change: {Motion:[0:3.83777614174198E-13d,1:-0.0d,2:-8.58567989507671E-14d],UUIDLeast:-5466077394096877708L,Health:5s,Invulnerable:0b,Air:300s,OnGround:1b,Dimension:0,PortalCooldown:0,Rotation:[0:231.61879f,1:0.0f],Thrower:"fracerman",FallDistance:0.0f,Item:{id:"minecraft:skull",Count:1b,tag:{SkullOwner:{Id:"e712743c-e063-4174-b0e3-2607fc391e47",Properties:{textures:[0:{Signature:"I7d6cqAC8Pnp3n1BtXe8g5FQQXer4nLV4igi5Kn3mviXgJ3Tx5vi8Rw7c74XQ1zMvzvHgqKQ9By0veBbm6hJmWY5QV8Qhkupae/FHTJhqgi1ccYVM3/RbrZLjJHgCWvMZpxeMIv6AVWYSpURzi9ZxfxYUNjLQGCqQgIczgACY8KUcQLNUrCZJeA1hds9o55/u0Ms1XyOLyda/cFpsJ+6ZVLJOjbtyU9YzJf2GjgG2l1wR4xWvUmo/b4eVvXrZb8+ZCdMwz23ldP8RLoMHDzEBkbzRUWv6FeyNksEvZt4nYdBdW8l/ctEVuAvatDSZZgbY6zpvGz8TmLC9PnCawE6aIQV5xaWrmFaTcV8Gx1PJXdN4BC2HjlmftEa964xl+8uh5a6e74pp3xUUsbI6DvqkaWYfxeUpR9PVT24+n0WNROL9EYfafUD+n4KAwGf2NAu984eyIktAWAnFj3Yk8XByQkMAw4WxDNVAZziCq58IC3wzIUs2IhegMoZZi06kbGBhmc4YVMQDQEJsQ5SOXOITs7zezfy8cqEqCis8hgbwrISIUSfS1v17EaxxoiMPWAAx1lsXuJ6EYjVtPz1eEEnCPqLVgCfeFMJefncykkUly/UZGjSQtI96H47Ez3QjyPT6LKGTKTa/kjwLxNEGO2qVqo/hBauMCVvVEeLrh+PT2Y=",Value:"eyJ0aW1lc3RhbXAiOjE0NTg4Njk1MDkwMTIsInByb2ZpbGVJZCI6ImU3MTI3NDNjZTA2MzQxNzRiMGUzMjYwN2ZjMzkxZTQ3IiwicHJvZmlsZU5hbWUiOiJjaGF5c2Vib2kyNCIsInNpZ25hdHVyZVJlcXVpcmVkIjp0cnVlLCJ0ZXh0dXJlcyI6eyJTS0lOIjp7InVybCI6Imh0dHA6Ly90ZXh0dXJlcy5taW5lY3JhZnQubmV0L3RleHR1cmUvZTI2YmRkNTVhYWU5NTM1NTc4OGNjZDEzZjZmMDFjMWY4MTUwNWQ1NzYxNTM1Y2I1ZjliYTQ3MGJkMTU4N2Y3IiwibWV0YWRhdGEiOnsibW9kZWwiOiJzbGltIn19fX0="}]},Name:"chayseboi24"},display:{Lore:[0:"The head of an Orc"],Name:"Orc Skull"}},Damage:3s},UUIDMost:4051566748518533180L,Pos:[0:145.5072023097701d,1:6.0d,2:1000.4890200994591d],PickupDelay:0s,Fire:-1s,Age:59s}

third test :

[19:39:42] The data tag did not change: {Motion:[0:3.3881351659306543E-15d,1:-0.0d,2:-1.7961394049049858E-15d],UUIDLeast:-5949394273938387345L,Health:5s,Invulnerable:0b,Air:300s,OnGround:1b,Dimension:0,PortalCooldown:0,Rotation:[0:119.5463f,1:0.0f],Thrower:"fracerman",FallDistance:0.0f,Item:{id:"minecraft:skull",Count:1b,tag:{SkullOwner:{Id:"e712743c-e063-4174-b0e3-2607fc391e47",Properties:{textures:[0:{Signature:"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",Value:"eyJ0aW1lc3RhbXAiOjE0NTg4NzI0MTI2NjEsInByb2ZpbGVJZCI6ImU3MTI3NDNjZTA2MzQxNzRiMGUzMjYwN2ZjMzkxZTQ3IiwicHJvZmlsZU5hbWUiOiJjaGF5c2Vib2kyNCIsInNpZ25hdHVyZVJlcXVpcmVkIjp0cnVlLCJ0ZXh0dXJlcyI6eyJTS0lOIjp7InVybCI6Imh0dHA6Ly90ZXh0dXJlcy5taW5lY3JhZnQubmV0L3RleHR1cmUvZTI2YmRkNTVhYWU5NTM1NTc4OGNjZDEzZjZmMDFjMWY4MTUwNWQ1NzYxNTM1Y2I1ZjliYTQ3MGJkMTU4N2Y3IiwibWV0YWRhdGEiOnsibW9kZWwiOiJzbGltIn19fX0="}]},Name:"chayseboi24"},display:{Lore:[0:"The head of an Orc"],Name:"Orc Skull"}},Damage:3s},UUIDMost:-1406091659124455789L,Pos:[0:145.59334349118055d,1:6.0d,2:1000.4577846931677d],PickupDelay:0s,Fire:-1s,Age:63s}

fourth test:

[19:40:27] The data tag did not change: {Motion:[0:1.053705743171645E-15d,1:-0.0d,2:-4.014652202007572E-17d],UUIDLeast:-6325521487001969847L,Health:5s,Invulnerable:0b,Air:300s,OnGround:1b,Dimension:0,PortalCooldown:0,Rotation:[0:253.74677f,1:0.0f],Thrower:"fracerman",FallDistance:0.0f,Item:{id:"minecraft:skull",Count:1b,tag:{SkullOwner:{Id:"e712743c-e063-4174-b0e3-2607fc391e47",Properties:{textures:[0:{Signature:"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",Value:"eyJ0aW1lc3RhbXAiOjE0NTg4Njk1MDkwMTIsInByb2ZpbGVJZCI6ImU3MTI3NDNjZTA2MzQxNzRiMGUzMjYwN2ZjMzkxZTQ3IiwicHJvZmlsZU5hbWUiOiJjaGF5c2Vib2kyNCIsInNpZ25hdHVyZVJlcXVpcmVkIjp0cnVlLCJ0ZXh0dXJlcyI6eyJTS0lOIjp7InVybCI6Imh0dHA6Ly90ZXh0dXJlcy5taW5lY3JhZnQubmV0L3RleHR1cmUvZTI2YmRkNTVhYWU5NTM1NTc4OGNjZDEzZjZmMDFjMWY4MTUwNWQ1NzYxNTM1Y2I1ZjliYTQ3MGJkMTU4N2Y3IiwibWV0YWRhdGEiOnsibW9kZWwiOiJzbGltIn19fX0="}]},Name:"chayseboi24"},display:{Lore:[0:"The head of an Orc"],Name:"Orc Skull"}},Damage:3s},UUIDMost:-8301957484781549722L,Pos:[0:145.64070870541042d,1:6.0d,2:1000.4698201921842d],PickupDelay:0s,Fire:-1s,Age:64s}

Exact same problem here, 1.4.7 confirmation also it seems to be happening on LAN worlds Help fix this mojang!