I am stuck here.
I did upgrade owncloud to version 10.3.0.4 from a 9.x Version in two steps. First to 10.0 then 10.3.
The gallery app is up to date (16.1.1).
But when I open the gallery app it is not showing anything. All blank. I have no warnings or errors in the log file.
I re-installed the gallery app. But this did not change anything.
Any ideas where else I can look? Any other hints?