Uploading images today

I have also been struggling with image uploads to my Rise course for 3 weeks. I submitted a case with the support team but have not reached a solution. I have tried using my internet provider and my mobile hotspot for connection, tried using Edge and Chrome after deleting browser history, etc. I've also asked a couple of my colleagues to try uploading the images. The issue - it states uploading image and then circles for a long time, then the message 'error' is displayed. The images are from iStock and infographics I've created. I'm able to upload an image from Articulate Content Library but not images outside of their library. I've checked the size and confirmed it is less than 5G. I'm at a loss...................