Version Info

• Minecraft, ... 1.21.6
• Fusion, ... 1.2.10

Forge

No

Steps to Reproduce

Everything works great on 1.21.4, updated to 1.21.6 and it seems like Fusion is the issue. Server does not seem to crash, but client side crashes with this error:
The game crashed: batching sections
Error: java.lang.IllegalArgumentException: Collection is empty

Game runs for a few seconds until things start to finish loading then it crashes. These are the only mods I am using and all of them were updated to the 1.21.6 releases:

Chunk Loaders
1.2.9-forge-mc1.21.4

Connected Glass
1.1.13-forge-mc1.21.4

Fusion (Connected Textures)
1.2.10-forge-mc1.21.4

Rechiseled
1.1.6a-forge-mc1.21.4

SuperMartijn642's Config Lib
1.1.8-forge-mc1.21

SuperMartijn642's Core Lib
1.1.18-forge-mc1.21.4

Crash report (~/logs/latest.log)
https://gist.github.com/BetterGrumpyJake/4bb0a7179fa9efb0d40f7da5af1c3458

Client crash log:
https://gist.github.com/BetterGrumpyJake/d890196d5feb5e9fdeb037ab1e64b6b9

Seems to be a duplicate of #153.
I have fixed the issue now in Fusion version 1.2.10a for Forge 1.21.6 - 1.21.8.

Connecting and clear glass panes break client side the moment they are placed/loaded. I ended up being able to purge the few areas we had with this glass and everything is working again.

You cannot make new glass panes and place them, this will crash. You can have them in your inventory and revert them into regular glass panes and use them.

Connecting and clear glass blocks do not have an issue

So after doing some testing, I can say that it's connecting glass panes that are causing the crash. Possibly other things, but definitely glass panes.

This chunk would crash before I removed all the glass panes in the area:

glass blocks, at least the connecting ones seem to be fine. I'll do some more testing