What were you doing when the crash occured?

Not my report, a player of my modpack reported this to me. him and his friends if they go near a aether portal they immediately crash.

Did it crash the client or server?

Client

Mod Version

1.6.3.1 (Latest)

Fabric API Version

43.1

Trinkets Version

No response

Crash Report

https://paste.corebot.dev/uredoqoyun.coffeescript

Other mods

No response

Additional Information

No response

This has been fixed in 1.6.5+

I am having the same issue https://paste-bin.xyz/29376

This has been fixed in development versions, and should be all good to go in the next release. Thanks for reporting!