Save Scummer randomly stops backing up saves

[mGuv]

Problem

I was playing CDDA when I accidentally hit "Ignore all and continue" and then got brutally murdered by a group of zombies.

I then went to restore my backup and realised the last save was over an hour ago. Which is strange because I know I had just quick saved, as well as all the auto-saves that would have happened.

At some point, Save Scummer stopped making backups.

Repro steps

Sadly none at the moment. There were no errors in the application and it looked like it was still running... The only thing I know is that I had been playing for quite a while - so could be to do with run time?

Expected Behaviour

As long as Save Scummer is running, I expect it to back up every save.

[mGuv]

Replicated by just leaving it running for a long time.

Game/Scummer was idle for about three hours when I then made a new save and the Scummer didn't pick it up.

[mGuv]

Doesn't seem to be about being idle. Might just be a time thing - seems if it runs for about three+ hours it stops...

Some thoughts on how to handle it here: https://stackoverflow.com/questions/6184115/filesystemwatcher-stops-catching-events