0. ALWAYS PROVIDE INFORMATION ABOUT MODLOADER (Fabric / Forge) AND MOD VERSION (For Example 1.19.2-8.2.10)
   Fabric 1.21.4 - 10.4.13

1. Describe the bug

Easy Shulker Boxes mod stops working when having traveler's backpack on.

2. Write steps to reproduce the bug

Have only ESB and TB mods in the mods folder (and their required apis) and start the game.

3. What is expected behaviour

As soon as you enter your world, the shulker boxes and the bundles no longer have the UI from ESB mod anymore.

4. Screenshots (If applicable)

This is how it needs to look if ESB mod works:

If the mod won't work, the game will fall back to the vanilla UI when hovering the shulker boxes and bundles. And the mouse actions from ESB don't work anymore either.

10.4.12 still seems to work ok with ESB without any issues. Is this bug already fixed for a later game version?

Also after getting that version of TB, there seems to be another mod which breaks ESB. I gotta do a bit more debugging on that part.

EDIT: My mistake, the version that causes no issues is 10.4.11

EDIT #2: I accidently put the neoforge version instead of the fabric version. I am yet to find out which version does not break the ESB mod.

So here's what I have found
Every single 10.4.x TB version has a random chance on breaking ESBs functionality upon world enter.

It can be first try, or fifth. And I think the chances of TB breaking the mod may increase if the world generation is more complex or if there are more mods installed.

So as conclusion, any TB version for 1.21.4 breaks ESB.

I am unsure if this is the same case for later game versions though as I haven't tested.

Sadly I do not support 1.21.4 for a while now so this wont be worked on for this version, I'll check if it happens for 1.21.1/1.21.10 though and if it does find the appropriate solution