Can’t upload my pages.

Hi there, 

I decided to delete and re-upload my first issue with the format in spreads rather than single pages. Files are jpegs

It just stays at 0/21 pages with no change. For hours 

I tried uploading the original jpegs I had as a test and  the same. 

I’ve tried both on a PC and a Mac. 
left on for multiple hours with no change. 

I’ve seen threads talking about this happening previously but I thought it’d be faster to get a response with a new one.