If your Unreal Engine project crashes when you click on “Project Settings” or If the Epic Games Launcher crashes when you click on Library, I know a potential fix that I could not find on the internet. I spent hours trying to figure the problem out. The solution to my problem was the Thumbnail Picture JPEG of the Project. I had to open file explorer and delete it from there. Hope this helps someone. I believe the problem was that I upload a thumbnail that was not the right size and it caused the launcher and project to keep crashing and giving me a broad error in the log.
- MikeyBison