Hello @ThomasBabson ...
You may not be able to upload your images because you've exceeded your limit of files uploaded to your personal "Files" area of Canvas. The default for all users is around 50 MB (yeah...not a lot, I know). To check where you are in your own account, in Canvas go to your "Account" icon in the far left-hand side global navigation menu. Then, within the fly-out menu that appears, select "Files". This is your personal file storage. At the bottom, you'll see a percentage out of 52.4 MB (your total size may differ than mine...but that is what mine currently says). Are you near or at 100%? If so, you'll need to delete some files from your personal storage so that you can upload these new files to your discussion topic. Just so you know, when you look at the "My Files" >> "Submissions" folder, you'll see a tiny padlock icon on the "Submissions" folder. You cannot delete any files from that folder because that is where your assignment file submissions are stored. And, files in that folder do not count toward your file storage quota...so you don't need to worry about removing files from that particular folder...since it's locked anyway. Here are some Guides for you to look at with more information:
Let Community members know if you have any questions about this...thanks!
