If the greatest majority of them were like the PID ones at the start of your listing, then I believe this was an issue with the scanner and not the system (forum search for PID, etc. should show a few topics), which if you tried to take any action the file/s couldn’t be found ?

I believe has now been corrected and why you aren’t getting them now. This appears to have been a problem for a small number people (or we would have seen much more activity in the forums)