Server crash after exiting train

[DoktorCraft23]

Describe the Bug

If 2 or more people are on a train and you try escaping a seat while its still driving the server crashes. I dont think the server is the problem because we have 6 gb of RAM. Im not sure what the problem is. It is also very strange that the first person to sit on the train is unaffected by the crash and the server runs normally. What is causing this problem?

Reproduction Steps

1. Go on a server.
2. Build a Train with min. 2 Seats.
3. Sit down and try exiting the seat.
4. If Step 3. doesnt work, try it again.
5. And now you have a crash!

...

Expected Result

The server should not crash and the train should have no problems with 2 or more people.

Screenshots and Videos

No response

Crash Report or Log

https://pastebin.com/xanceDYU

Operating System

Windows 11

Mod Version

0.5.1f

Minecraft Version

1.19.2

Forge Version

43.2.21

Other Mods

See the crashlog for a full modlist: https://pastebin.com/xanceDYU

Additional Context

No response

[IThundxr]

This is caused by this mixin in the "Missions" mod