My Minecraft server is experiencing intermittent crashes during normal gameplay, specifically with a ConcurrentModificationException linked to the "Immersive Aircraft" mod. The server starts without issues, but after some time of playing, the crash occurs.

Environment
Minecraft Version: 1.20.1
Forge Version: 47.4.0
Immersive Aircraft Mod Version: 1.2.2+1.20.1-forge.jar
Server Java Version: 22.0.2 (Azul Systems, Inc.)
Server Operating System: Linux (amd64) version 6.11.0-1014-azure

Steps to Reproduce
Set up a Minecraft 1.20.1 Forge server (Forge version 47.4.0).
Install the immersive_aircraft-1.2.2+1.20.1-forge.jar mod into the mods folder, alongside the other mods listed in the crash report.
Start the server. (It starts successfully).
Play on the server for a period of time (e.g., interact with vehicles, explore, etc.). The crash happens after a while during normal gameplay.
Note: I haven't identified specific actions that consistently trigger the crash, it seems to happen randomly after some playtime.
Expected Behavior
The server should run stably during gameplay without unexpected crashes.

Actual Behavior
The server crashes after a period of active gameplay, showing a ConcurrentModificationException in the Immersive Aircraft mod's VehicleInventoryDescription during runtime.

crash-2025-05-20_15.58.38-fml.txt

crash-2025-07-06_23.55.29-fml.txt
+1，The same goes for my server

Merged with ##262