Error message: "The document could not be saved. Bytes not ready." PDF files on server.

I have a coworker in the company that uses Acrobat Pro to make small adjustment(change a text/sign or whatever) to many(200+) pdfs per day. All the PDFs were uploaded by others to a server folder for the coworker to make changes.

The Error msg were there for a long time but it was only once in a while, recently with the OS and acrobat update it gets much worse.

I see there are post suggested to save the file to local drives but with the workload the coworker's doing it is very painful to do that for the current frequency (yeah if you have the error once in a week like 1 pdf within 1k+ pdfs then that's ok, but now the error shows up once every 10-20 files, with that rate the coworker needs to save 200+ pdf to the desktop and edit and save then upload it back to server per week instead of just edit and save on the server). Also when the error occurs, the work is unsaved meaning the coworker need to do force quit acrobat, copy the file to desktop, do the same edit again, save the file, upload to server.

This is unaccepable for the workflow, please fix this with acrobat update.