Sorry for reviving but just wanting to share because this is a really annoying issue. In my case, the fatal error was caused by having several Niagara systems. UE optimization tools or crash reports did not specify it, just trial and error.
Sorry for reviving but just wanting to share because this is a really annoying issue. In my case, the fatal error was caused by having several Niagara systems. UE optimization tools or crash reports did not specify it, just trial and error.