embarrassingly enough on how we missed this, but it will work if you type everything in lower case. Please let me know if this works for you.
With that aside, I would like to share that we are working on a big Dropbox sync update. You will be able to load and save campaign packages, images, sounds to and from dropbox and local HDD with a built in browser.
With Dropbox, this should allow you to save files that are much bigger than what our current cloud services can handle.