Game crashes if belts have anything on them

[DoctorNut]

Describe the bug

If a mechanical belt has any item on it, the game crashes.

To Reproduce

Steps to reproduce the behavior.

1. Create a conveyor of any length
2. Attempt to move any item with the belt
3. Observe a crash

Expected Behavior

The game not to crash

Screenshots

If applicable, add screenshots to help explain your problem.

System Information

You should only report issues on the latest version of the library. No others are supported. Include the following information:

• Other mods and their versions [e.g. Create: TFMG 0.7.0, JEI 1.20.1]
  Create 6.0.6
  Additional context

Add any other context about the problem here.
For crashes, include the crash report and debug.log.
For client disconnections, include both the server and client debug.logs.

Library version is 1.4.13. Crash reproduced with only Create and this library on a superflat world with no structures on a fresh Neoforge Install.

Crash Report: https://mclo.gs/k93SJOn
Debug Log: https://mclo.gs/hWrDcPS

[petrolpark]

Fixed in 1.4.14.