Custom Player Heads lose texture when placed in the world

Which command are you using to generate the head?

Note that the UUID format changed in 1.16

Unable to reproduce. It works properly for me:

/give @s minecraft:player_head{SkullOwner:"Conem"}

Perhaps you are using a texture pack; check if the issue still persists after deactivating them all.

Also @unknown, to my knowledge there are no more commands that give you a player head in said version other than the one I pasted.

It's possible to use commands specifying an UUID instead of "Owner" as well.

Please provide the exact command that you used.

I asked for the command because the OP could be using the wrong command

The problem was the new uuid format in 1.16, thanks.

invalid