One thing that might be worth looking into.
I just saw this Microsoft notice about a bug affecting W10/W11 ..
https://learn.microsoft.com/en-us/windows/release-health/status-windows-10-22h2#apps-that-set-uiaccess-true-might-fail-to-start-for-non-admin-users
"After installing the September 2024 preview update (KB5043131), released September 24, 2024 or later, you might observe that apps such as Quick Assist, Microsoft Teams, Windows Narrator, etc might fail to start if you are a non-admin user," Microsoft explained in a new Windows health dashboard entry.
"You might experience this issue on any app that sets UIAccess=true while trying to run the app as a non-admin user. The uiAccess=true attribute in an application's manifest file is used to request that the application be granted higher privileges."
I wonder if even though the PowerPMAC IDE is set for "Run as Admin", it is failing because of a bug like this..