Not sure what the difference is, but it's probably why a lot of people stick with an older version that simply works for them. FWIW, I've checked out newer versions but always go back to 5.9.2.4 ...
I had not upgraded for quite a while. Then I got that message once for a cam in my garage on 8/18. I then upgraded to 5.9.4.11, which was the latest stable version, on 8/19. Since then, I have not had that message at all.
Having the same issue here. It’s not a network related issue. Expanded to a second local mounted HDD for storage at 100 GB and then moving them to a NAS. File transfers are very fast manually. Using the same user account as the BI login to the NAS. I could get some hiccups here or there but it’s like it isn’t able to consistently move them. Only 6 cameras ranging from 8-16 megapixels or 35 MB/s. The speed test on BI shows something absurd for the test between it and the NAS.