Reproduction Steps

When Lithium and Simple Planes are installed together, flying over the ocean will cause an Entity Tick crash.

1. Spawn in any plane from Simple Planes
2. Fly over the ocean
3. The game crashes when seeing dolphins

Crash Report File

crash-2021-01-24_23.54.21-server.txt

Additional Information

The server is on 1.16.4

The crash report looks like Simple Planes would also crash when Lithium is not installed.

This isn't caused by Lithium and it is also not caused by simple planes.

Alright, I'll take a look. Thank you guys!

@bendooms Look for a mod with a mixin method inject called pathfindThroughFences, as that's what causes the issue. Neither Lithium nor Simple Planes contain such a mixin afaik.