Hi @Lukas, and thank you for the report.
Thanks to you as well, @Marenz (and welcome!). You are correct that this is a bug and should be reported in an issue. As it turns out, this error has been a rather annoying one to troubleshoot as it seems to be impacting only a select number of systems and a reproducer has yet to be found.
The best reference would be the following post by @phillxnet:
As you can see, this is something that is difficult to pinpoint exactly and the latest evidence seems to be related to either (or both) of the following:
- AFP is enabled
- webUI left opened for a long time
@Lukas, would you by any chance fit in either one of these cases?
Sorry I can’t be of more help–@phillxnet and others may have better feedback to give you–but that one has been a difficult one to troubleshoot. This is for this exact reason that your report will hopefully be very helpful, however, so thanks in advance for it!