Question Network Transport Unet is resetting on runtime

I'm working on a small car game, where I have used the Unity Mlapi tutorial for creating a Hello World game to link the position of the car. All seems to be working, except that whenever I run it, the network transport that I am using (Unet) seems to get unassigned. In the editor I can just reassign it manually, but is there any way to do it with code or fix the problem? Otherwise non of my builds are working.

 

This is a known issue please try upgrading to a different version of Unity:
https://github.com/Unity-Technologies/com.unity.multiplayer.mlapi/issues/716