As far as I can tell, no.

There are multiple errors appearing within the SQL Server section of the error log viewer. When I double-click on the one in question, then all I get for the details is what you've seen.

If I restore up to and including the last log backup that works (file 3) then I can see that the DB has one of the three filegroups I had started setting up.

I know that i removed and recreated filegroups and threi files a few times and backed up the log at least once during those sessions, so I wonder if there is a problem in that regard?