I tried to update to Probuilder 4.0.2, but it always crashes Unity after it tries to repair mesh components with missing references. It pops up a dialog (Probuilder 4 Conversion Utility) and asks me to change the serialization mode from Mixed to ForceText. I do this, then it begins the process and crashes Unity. I tried this several times and it crashed each time. I also tried changing the serialization mode in Project Settings but it crashed Unity there as well. I'm using Unity 2018.3.1 and previous Probuilder version was 3.0.9.