The OneDrive forum appears to have been locked, so I am trying this one.
I moved some large files (photos) to my OneDrive folder to share between PCs and left them synchronising. When I came back to check on their progress, the files had disappeared from the PCs. Looking at the OneDrive window it shows them being added to Onedrive then mysteriously being removed a few minutes later. What on earth is going on? I tried Ctrl & Z to see if it could undo the removal. The files looked as if they were being restored - but just disappeared again. It's a good job I noticed, otherwise I could have lost these files forever. I can't afford to have my important files just disappearing like that.