Pdf incomplete when accessed on OX drive from Ubuntu Linux Nautilus

I am running Ubuntu Linux 24.04. In Nautilus (file manager) I have succesfully linked my OX drive.

using davs://dav.mailbox.org/servlet/

When I open any pdf stored on my OX Drive using Nautilus with the document viewer, the pdf turn out incomplete (empty pages or only lines etc).

When I copy the same pdf from the OX drive to my home dir (on my computer) and open the pdf from home, the pdf shows up complete.

As a test, I have linked my Google drive. Opening a pdf stored on my Google drive also works fine.

I want to use OX drive as my main storage, but obviously need to get this solved first.

Any help or suggestions are welcome!

William