I've never run in to that issue in the last 10+ years of using notepad++ with these plugins. Since my autosave location is dropbox, it's automatically backed up the moment the file is saved. I've set my control+n to a new note and not an empty file. The take notes plugin doesn't rely on the built in temp auto saves.
If a file is saved and then gets corrupted for whatever reason, I can also use dropbox to grab the previous known good version. I've tested it, but I've never had to actually use it.
If a file is saved and then gets corrupted for whatever reason, I can also use dropbox to grab the previous known good version. I've tested it, but I've never had to actually use it.