It was a busy week at work so I couldn’t do much. However, I found the solution of the debuggging issue today. It was in this forum, in another thread:
I have found that you need to set
AUTOUPDATER_Duplicati_SKIP_UPDATE=1environment variable or realtime debugging doesn’t work.
Should be included as a note on the the [How to build from source], though.
I already had the idea that there was more than a single thread which the debugger could not monitor. I will try to dive deeper now. But beware, complete newbie to C#. I feel more at home with C on microcontrollers.
Even without tracing, I already see plenty of “Exception thrown: ‘System.IO.FileNotFoundException’ in mscorlib.dll”