Well I’m running an older app version and am having the same issue too.
I believe it has something to do with agreeing to accept terms that thumbnail images will be going to the cloud, even if you don’t pay for the cloud use.
Since I’m using an old app version I probably don’t get that option to accept it.
You could try logging out of the app then close the app, open the app then sign in and see what happens??
I had posted a similar issue 3 days ago, with no replies. We can’t be the only ones.