[BUG] Entity textures missing after unloading entity once

[MiraculixxT]

Describe the issue

• What happened?
  • I added a custom texture for piglins depending on their health state. E.g. piglins with 1hp has different texture than piglins with 2hp. If the entity got unloaded once after spawning from the client and loaded again (e.g. leaving the entity render distance), no texture is rendered at all or the default texture. This also happens after rejoining and is not resolved by reloading textures or chunks client side.
• Does this issue also occur with OptiFine?
  • yes but less (feels more random there)
• Extra note
  • The piglin also has a custom model set with the mod EMF, but the model does not change with health states.

Screenshots
Piglin with 1hp having the right texture

Same entity with same resource pack after moving away until entity render distance and coming back:

Crash log

• Absolutely no logging about this behavior

Your setup: (please complete the following information):

• Minecraft version: 1.21
• ModLoader: fabric
• ETF Version 6.2.3
• Does the issue persist with only ETF installed?
  • Tested it with only ETF & EMF installed
• Have you checked the FAQ in the Readme, or Discord, to see if it is a known issue?
  • Readme yes