unnamed* right at startup

[jochenZDV9Y]

My Fusion 360 installation for MacOS 12.1 Monterey on MacBookPro 14.3 opens the file untitled at startup as usual. However, without me having made any changes, it immediately gets an asterisk (unnamed*) for unsaved changes. When closing the file immediately, the warning about unsaved changes appears.
Does this only happen to me, or has anyone else noticed this? Is there a setting to change this, or is it a bug?

[jeff_strater]

No, I do not see that behavior.  Do you have any add-ins installed that might run at startup?  I see that there is something in the undo menu.  What operation is shown there?

[jochenZDV9Y]

The undo menu contains the operation 'Create an Attribute'. After undoing this operation, the asterisk by the name disappears and, of course, the warning about unsaved changes no longer appears when the application is closed. However, when Fusion is restarted, unnamed* immediately reappears with the operation 'Create an Attribute' in the undo menu.
Yes, I recently installed the JoinerCAD addin. But I had this behavior before.

[jochenZDV9Y · Accepted solution]

Since I could remember not having this behavior from the beginning, I now tried uninstalling and then reinstalling. This has eliminated the problem. Nevertheless, it would be interesting to know how this behavior could occur.