Something seems broken in 5.5.3, when I package exe on win11, the 2nd time I open, it would either be black screen or crash. I had to remove d3dcache and project saved config in AppData\Local to be able to open again.
The exe works fine in win10
It seems others are having similar issues
https://www.reddit.com/r/unrealengine/comments/1hbjdim/551_super_broken_when_packaging_please_try/