So ive troubleshooted this error on Unity 2019.3.15f1 and 14f1: After creating a URP project and importing the mars package everything works in that particular session (except shaders showing up magenta-different issue) with Mars panel and simulation/device panels open. If I close unity and relaunch, unity keep crashing (screenshot attached). It has got to do with the simulation panel, since when i close it before exiting unity, on relaunching unity wont crash. Anybody have such a strange issue?. It has either got to do with the Composite render or URP pipeline. Quick update, once crashed the project is non-retrievable as it keeps crashing on simulation window on every launch attempt. thanks much appreciated!