problem after thumbnail generated when uploading pics

I just uploaded two pics of the same plane. I can provide file names if needed. The upload went fine then when I clicked on the generated thumbnail to add photo tags I got “Sorry no such photo exists” error. I entered the N# prior to clicking the thumbnail and I can’t find the pic. Help please?

I neglected to add that when I search for the N# the picture does not appear either. I just added another and after the upload it said photo tags loaded successfully. I don’t get it.

Now all the pics have miraculously appeared. I still don’t get it. But the problem fixed itself. I’ll upload some more and see.