I'm playing CITResewn on 1.20.1 and have Issues with replacing player_head items. Everything was tested on the latest version of the mod on Minecraft 1.20.1 without any other mods installed.

The replacement seems to work with other items, I tested spruce_stairs as a normal block item and creeper_head as a different head item, both work. For some reason player_head does not.

This is my .properties code

type=item
items=player_head spruce_stairs zombie_head
nbt.display.Name=pattern:*test*
model=zight_gold
texture=zight_gold