I’m having the same issue. I have tried different browsers, including Chrome, Safari and Firefox. I have tried the three suggestions re firewall, Java and cookies. The images I am trying to upload in frames 21 and 22 are png - I have also tried uploading them as jpg. The filenames do not contain any special characters.
I do not get any error code - just that the image is eternally processing.
Presentation is tomorrow morning.
Any help would be gratefully appreciated.
Thank you, in advance, for your help.