[1803, au] Onedrive Files on Demand - files going missing

[KevinB]

Got a bit of an irritating and weird problem going on with Onedrive Files on Demand here, and I wonder if anyone else has seen it, has any idea what's going on and might be able to help my sanity.

 

We moved to FoD over half term after an abortive attempt to use a product which I won't name and shame but which was supposed to map drives to cloud storage but which instead used to fail to connect 75% of the time, and had hideously slow performance because unknown to us before purchase, it uses WebDAV!

 

After that attempt we took the plunge and upgraded from 1607 to 1803 to make use of FoD and we now have things set up so that when a user logs on, Onedrive starts automatically, logs them in, and redirects Desktop, Documents and Start Menu to Onedrive. This is working perfectly in 95% of cases. Files are opened/created, worked on, saved, and are available elsewhere when the user logs in.

 

In the other 5% of cases files are apparently opened/created, worked on and saved and are usable during that logon session but next time a user logs on and looks for them, on the same PC or a different one, they are just not there. They don't even exist in the "C:\Users\%username%\MyEstablishmentName - Onedrive" folder on the PC there were working on which is where the Documents folder actually redirects to and is where the other 95% of users files are correctly being saved then uploaded to Onedrive in the background.

 

Anyone seen any similar sort of behavior using Fod or got any ideas what on Earth is going on? I'm totally flummoxed, and because users only find out that this has happened next time they log on, I have no way of troubleshooting that previous session which is where everything went to pot.

 

Help I'm going nuts