Issue description: As the title suggests. The crash tends to be immediate after joining but sometimes the player can stay for a couple of seconds before, again, crashing.

If crashed, link to crash report (use a site such as pastebin): https://pastebin.com/raw/wDHZebPA

Versions:

• Minecraft: 1.16.5
• Forge: 1.16.5-36.1.0
• Mantle: .16.5-1.6.92
• Tinkers Construct: 1.16.5-3.0.3.109

Confirm below that this issue is not covered on the roadmap or "Whats New?"
Could not find anything similar, given the newest update also has been just released.

Can it be reproduced with just Tinkers Construct? If not, list the other mods required to reproduce the issue.
Unable to test that at the time, will come later if necessary.

Sounds like someone broke tags in a dumb way. This might be fixed with b198764? Try again on build 111 on Curseforge.

Yes, it has been fixed, sorry for not saying that sooner.