Thanks a lot for the report.
I suppose the problem might be connected with the contents of one of your notes.
It would be really helpful if you could repeat the process with the debug logging
Could you please do the following:
1) Run CintaNotes and activate "Help/Debug/Debug Logging"
2) Try to repeat the problem
3) This will produce the file named "log.N.txt" (either in CN folder,
or in %APPDATA%\CintaNotes), where N is a number - please send the latest
file (it will be the one with the max N) to firstname.lastname@example.org
Please note that this file may contain some of your private data, such as tag
names (but no passwords), and note contents. You may want to edit the file
and remove this data first.
Hope this is not too much to ask, thank you!