I like to use dropbox to back up my photos from my iPhone. I have a folder storage limit of 5.25 GB. Recently it's failed to upload photos if the amount exceeded 3 or 4 GB. Made sense at first, getting close to that 5.25 limit. But now it won't import even small numbers of photos (1GB or less) , I get error messages saying "Importing these photos would fill up all your Dropbox space. Failed to import..." and direct me to upgrade and get more space, but I currently only use 81.5 MB out of that 5.25 GB limit. I've tried restarting my computer, restarting dropbox, nothing has fixed it.
Any suggestions?