"Resume" in 'Rescan on Resume' means "switch back to Photo Mechanic from another application". This is somewhat relevant, as, if you have this feature enabled, switching back to Photo Mechanic while a Live Ingest is running should force it to rescan the Contact Sheet in the same way that the / key does.
'Automatically rescan when folder contents change' is a setting that has only ever existed on MacOS. The setting has been removed, because it relied upon an API that Apple deprecated years ago, so yes, the document does need to be updated, but it never existed on Windows. This setting is not particularly relevant to Live Ingest, not only because it doesn't exist on Windows, but because it was meant to see changes that other programs were making to folders that are open as Contact Sheets, nothing to do with Live Ingest. Yes, Photo Mechanic does know about the changes that it is making to files and folders that it is currently working with.
As far as the actual issue, I've just tested this with Windows 11 and the build that you have stated you are using and I am not experiencing the issue as you've described it. Probably best if you send us an email (support@camerabits.com) and I can give you instructions on how to enable some additional logging that might tell us more about the issue.
