Articulate Review stuck saying "This item is still processing and will be shown here automatically when ready."

I am having this problem today.......

I saved a file that worked previously with a new name and uploaded as a new file. 

Tried the old unaltered file with the same result. 

Next, I did a totally different file that worked fine in the past - same result.

Since all these files were on an external drive, I moved one that worked in the past onto my desktop - same result.