How to reproduce:
1. Open the attached "GameplayServerTest.zip" Project
2. Change scripting backend to IL2CPP
3. Build and run the "NetCode" scene

Expected Behavior: The project build and runs without problem
Actual Behavior: The project crashes

Reproducible with: 2021.1.0b8
Could not test on: 2018.4, 2019.4, 2020.2, 2021.2 due to either package breaking or error provided below

Notes:
- Crash stacktrace attached in "Crash.txt". The stacktrace is from an Android device.
- Could not test on other versions due to this error:
"Loading Entity Scene failed because the entity header file couldn't be resolved. This might be caused by a failed import of the entity scene. Please take a look at the SubScene MonoBehaviour that references this scene or at the asset import worker log in C:\Users\Manfredas.siurkus\Downloads\case_1315007-GameplayServerTest\Logs."
- Was able to reproduce on win standalone and Android
- Could not reproduce with Mono