Unable to insert files/photos and save keynote
I have Keynote version 11.0.1., and for the past week I have been unable to insert images via drag and drop, or using the insert function in keynote. Each time I try to do either of these actions I receive messages that the file type is not supported, or that it could not be inserted. The files have been jpgs, and I have tried saving them as pngs, pdfs, etc. Basically anything else and it still doesn't work. The only way I can seem to get images into my presentation is by copy and pasting from another open program such as illustrator/indesign etc. which is obviously not leaving me with the most high res version of the images.
I also have not been able to save keynote documents at all (to my desktop, cloud, dropbox, work server etc.). Each time I try to do so I get a message that says "The document can't be saved. You don't have permission." I've tried going to finder> file> get info> and changing to read and write for everyone and it hasn't changed anything.
I've tried restarting my computer, restarting my keynote, checking if there is an update, deleting keynote from my computer and reinstalling, and nothing seems to make a difference.
Essentially my keynote is useless right now if all I can do is type in it and then not save my presentation haha.
MacBook Pro (2020 and later)