Getting "Assertion failed on expression" error when unloading scene in Unity?

Question

Here are the errors I'm getting:

Assertion failed on expression: 'offsetIndex != -1'


Assertion failed on expression: 'offsetIndex != -1'UnityEngine.GUIUtility:ProcessEvent (int,intptr,bool&

I'm using SceneManager.UnloadSceneAsync then loading a scene right after. This actually works perfectly, but it still throws these errors :( So it's very strange. Actually throws that second error 15 times.

I'm using basically the same script as the SceneLoader in this example project from Unity: https://github.com/UnityTechnologies/open-project-1

Has anybody run into this before? I have no idea what to do. Been very frustrating.

Answer 1

I've had the same issue, it was caused by LightProbes.TetrahedralizeAsync(), don't know why, but switching to LightProbes.Tetrahedralize() fixed it.