Hotbar to Belt incompatibilities

[Rosebeanz]

There are 3 main issues:
- When toggling to tools in the Utility Belt, the tool model in my hand (both 1st and 3rd person) remains the same tool model that was in my Hotbar.

- When toggling to use tools in the Utility Belt, if I was in an empty slot in my Hotbar initially prior to switching (nothing in my hands), the block I would be harvesting would be as if I was using my bare hands.

- Lastly, when I have a tool with Mending/Mending-esque Enchantments, in my specific case a tool with Photosynthesis (RPG Series), and I switch to a tool in the Utility Belt my game would freeze then crash.

• Minecraft: 1.21.1
• Mod loader: FABRIC
• Mod version 3.0.0

Log
Here're the 2 most recent logs that were produced with the 3rd point!
https://pastebin.com/ipNxwpKh
https://pastebin.com/Uy7GED8d

[Rosebeanz]

Here's another very common crash occurence:
https://pastebin.com/pV6gA9Gq