Just finished reading the whole forum. Lots of people with the same problem but no solution that worked for me. I have >200 errors on console. If I remember them correctly, some cinemachine + postprocessing, some are entities related, some are weird messages about deleted assets... ? I have the repo cloned with git lfs enabled; I am opening it in the correct Unity version (2018.3.8f1, Windows); I have tried both things mentioned in the github README; reimported the 4 shaders in Firstperson_Projection removed and reinstalled entities package (using the Package Manager). I'm currently going through git reset / clean, and reimporting the whole project. When I'm done, I'll report here with screenshots and more details.