I had a 4.26.0 project in UE4, I backed it up and formatted my computer. When I reinstalled, Unreal Engine only had 4.26.1 option and I installed it. Sometimes my project is in the menu and sometimes when I exit the play editor, it freezes and I cannot turn it off, I have to restart my computer. What can I do ?
Run your project in DebugEditor Mode in Visual Studio 2019. Maybe this will tell you exactly where the error is. This method has saved me several times.