I came across the serious problem that a file written to ownCloud mapped drive was not synchronized on the server and was completely lost after closing RaiDrive.
Today, I was writing a document on ownCloud drive. I kept saving the file while writing it. And the file was there. After closing and reopening the document, it was still there. But now, after opening the file from the different computer, there is only a first version of the file made in the morning. Any saved changes done during the day are missing. The file stopped to be synchronized to the server at some time. Even if I look at the server copy, it is only the first version. Nothing more.
This is not the first time it happened to me. I was recording some measurement data directly to mapped ownCloud drive some time ago. After the measurement was finished, I could open the file, modify it in Excel and do everything with it. After reconnecting the RaiDrive mapped drive, the file was not there and everything was lost. I looked directly at the server and the file was not there. Looks like I was working with some local cached file only and it was not synchronized to the server at all.
When I look into the server log, it does not contain any error.
I will try to provide log files when I am back to my work computer next week.