be careful as this thread was started by another person your issues might have different causes.
there could be a thousand things that could cause an issue.
but if you have 2 projects one of them works and the other doesn’t you can apply a simple technique.
start removing one thing at a time until the project works again.
or viceversa, add an empty level and start adding one thing until it breaks.
for example. i had issues with a 360 panoramic render plugin (not from epic). it crashed my gpu (not unreal) which crashed the os.
(only a driver can crash the os. if unreal crashes it shouldnt crash the os).