Photos trending across
the platform right now...
I did change the file name before uploading.
I'm not on my pc now but I will try again tommorow with another image and give it and completely random name and will report back.
I have just done as you requested and uploaded the same file as yesterday and gave it a totally random file name prior to uploading T1e3s5t8f9i2l0e6.jpg
Same thing happened, no thumbnail generated in the upload box, no tags auto generated.
I have not changed the title or added a description or tags this time in case it was of use to you. i will delete it if not needed.
I also uploaded another new photo with the same results. This one I did give a title, description and tags.
Hope this helps