digikam can't find NFS which is actually mounted

[Diego]

Hi -- somehow digikam seems to be losing its information about NFS 
shares even though the NFS is successfully mounted on the system. These 
is all the evidence I have:

1. When I double click on a picture I get a message "The storage 
location of this image is currently not available".

2. When I open digikam, it finishes searching for new items in 0 secs. 
This is odd since it typically takes between 1 or 2 mins)

3. When I go to settings -> configure digikam -> collections. I see my 
network share, but the little "network symbol" next to it, is grayed out.

4. On the right pane, under the "Properties" tab, the Folder (under 
"File Properties") starts with "???/" instead of the mounting point of 
the NFS as it should.

5. On a terminal, I can "df" or "mount" and see the filesystem there. In 
fact I can cd and open and pictures/movies with gwenview, mplayer, vlc, 
etc. So, the NFS share is definitely mounted and accessible (I can also 
write on it).

6. If in settings/configure digikam/collection I click on the circular 
arrows next to the NFS path which says "updates the path of the 
collection" and select exactly the same directory as before, it starts 
rescaning everything (and I think rebuiliding the database, all of which 
takes a long time) and after that, everything works as normal (even 
though I changed nothing related to the NFS), at least for some time, 
until digikam again loses connection to the NFS share.

Anyone experienced anything like this, or any idea what may be happening?

I'm running Digikam 8.2.0 on Fedora 39 KDE-spin. This is the output (a 
little redacted) from "mount" for that share:

[server]:[dir_on_server] on [mounting_point] type nfs4 
(rw,nosuid,nodev,relatime,vers=4.2,rsize=104857
6,wsize=1048576,namlen=255,hard,proto=tcp,timeo=600,retrans=2,sec=sys,clientaddr=10.0.0.4,local_lock=none,addr
=10.0.0.2,user=xxxxx,_netdev)

Thanks much!

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