Describe the bug

MineTogether crashes on three separate versions on startup when added to ATM7.

Steps to reproduce

1. Download ATM7 (All The Mods 7).
2. Add MineTogether to the instance.
3. Attempt to open Minecraft.

Expected behaviour

Minecraft should open and load to the main menu.

Screenshots

No response

Version

6.1.0, 6.0.16, and 6.0.15

Minecraft Version

1.18.2

ModLoader Version

forge-40.1.80

Additional Information

crash-2023-06-22_09.56.56-client.txt
crash-2023-06-22_09.47.52-client.txt
crash-2023-06-22_09.38.33-client.txt

Here is a crash log for all 3 versions. From top to bottom, they are:

1. 6.0.16
2. 6.0.15
3. 6.1.0

Also crashes on 6.0.18. Here is log.

crash-2023-06-22_10.18.37-client.txt

I'm not sure why the game is crashing in such an odd way, But this crash can occur if you do not have Polylib installed.
https://www.curseforge.com/minecraft/mc-mods/polylib

closing due to inactivity