Hi
I am having exactly the same problem as yourself, uninstalling, reinstalling etc.etc. without any success.
Reported the problem, however no useful help forthcoming from IniBuilds apart from the uninstalling/reinstalling 'standard' script.
Just out of curiosity I installed the Manager on my spare (non-flying) computer, both running Windows 11, and lo and behold it works!!
I have no idea what is the problem with my main computer and I thought the IniBuilds would have figured it out by now.
As has been mentioned, none of the other 'managers' seem to have the problems that IniBuilds seem to be having.
Here's hoping that they can bring out a long overdue 'fix'
Al