Custom textures for item variants (e.g. paintings, axolotl bucket) do not work
Reproduce:
1.Use the resource pack provided in the attachment (the variant textures of the painting and axolotl bucket have been changed)
2.Apply the resource pack in 1.21.5 and 1.21.6 pre-1 respectively and view its textures.
3.It works fine in 1.21.5 and not in 1.21.6 pre-1.
Environment
Windows 10
Your pack does not have an overlay assigned for 1.21.6 Pre-Release 1 (the pack only contains overlays). Editing pack.mcmeta’s overlay values to support 1.21.6 Pre-Release 1 fixes this issue.
This is a pack problem, not a Minecraft bug.