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Issue Description
Playing a Multiplayer Game the Server Crashes when a Player tries to open the IE revolver to load cartridges into it.

Modpack version (Do not use "latest")
1.46

Logs
Revolver Crash Log
crash-2018-12-26_06.53.08-server.txt
Revolver Cut Debug Log
(As server crashes and immediatly restarts, moving Latest.log to Debug-1. Shows ~5 min back from the crash.)
debug-1.log
Speedloader Crash Log
crash-2018-12-26_07.08.41-server.txt
If you want the Debug Log for the Speed Loader, or any other log files, let me know.

If applicable, please upload your crash report, or latest.log to hastebin.

Screenshots

• NA -
  If applicable, add screenshots to help explain your problem.

Additional context
This error has happened 3 separate times, across 2 different players, and happens when they try to open the Revolver by Shift+Right Clicking. Same behavior occurs when attempting to open a Speed Loader.

The issue has been resolved in a new update of Immersive Engineering, thank you for the report.