While coding some Autodesk Revit addins using also WPF, I recently noticed that during debugging I get this:

It was working fine with my first addins but lately I cannot Hot Reload XAML files. Using VS2022 version 17.9.6.
I followed the instructions below – but still problem exists:

https://learn.microsoft.com/en-us/troubleshoot/developer/visualstudio/tools-utilities/xaml-hot-reload-troubleshooting?view=vs-2019

Is there anything else that might cause this issue?

Thank you!