Minecraft Version

1.21.1 (LTS)

Mod Loader

NeoForge

Mod Version

21.1.5

Describe the Issue

The mod crashed my game as soon as I placed a waystone.
Sometimes even using waystones crash the game or clicking on them.
It doesn't only happen to me but to players on my server too. Though it doesn't happen all the time, it's quite often.

Logs

https://mclo.gs/ZR04Tds - crash_report
https://mclo.gs/FM0yXAh - latest.log
(as both include issues from the mod)

Do you use any performance-enhancing mods (e.g. OptiFine) or custom server distributions (e.g. SpongeForge or Arclight)?

No response

Cannot reproduce with just Waystones and Balm installed.

Something in your instance is very broken because the crashes you are getting should not be possible under normal circumstances. This would most often be caused by more invasive mods, so I would try removing things like Sinytra Connector or performance mods to see which one might be causing it.