Notes are not included in the backup. Search indicated that this was an issue before, but had supposedly been fixed. Apparently, you have a regression. Please fix.
I can't reproduce this issue. Please tell me - can you create a new project, add a task to it with a note, generate a new backup and check if you see the note in the appropriate TXT file?
That works. Yesterday, I put a note on a project and checked the scheduled backup this morning and it was not there. Other notes were there. Perhaps the scheduled backup ran before I put the note on.