Hello! I'm trying to upload a Featured Image to one of my projects in Hub. However I get the following "Error saving edits" message, and the image does not get saved to the Project.

This happens with any image, any project. It's a bit of a problem because I want to add as much content as I can to our Projects. I know that Hub Projects is still in Beta and this is likely an issue stemming from it being a WIP. But if there are any Esri staff available to investigate, your help would be greatly appreciated. Thank you!