Can’t see thumbnails on WD my cloud from my iOS 13

I have been having trouble getting thumbnails on WD my cloud from my iOS 13, I delete the app from iPhone, reinstalled, still can’t get it.
It is so hard to find a picture without thumbnails, have to open them one by one to know which is which
What did I miss? Or is it even support thumbnails?

Any WD my cloud support here?
Anyone have similar problem?

I am seeing thumbnails with iOS 13.2.3 & app version 4.4.20. See if this KB article helps:
https://support-en.wd.com/app/answers/detail/a_id/1561

Contact the WD Support team directly if you need further assistance: