Just an update right now I loaded up the project I was working on yesterday which I made some code changes that showed up yesterday.
When launching fresh today and I hit PIE it was not showing the most recent changes. Visual Studio said compile was up to date. I pressed the compile button in the editor and then PIE showed the recent changes.
Also sometimes I get a message when launching the program from the editor along the lines of “This program was compiled in an earlier version of unreal would you like to recompile now?”