I just used apple preview to resize an image that wasn’t uploading. I only made it a bit smaller (1024×786) and then saved it. The new file uploaded fine. You might want to try that and see if it works for you. If it does then it may be that wordpress doesn’t like the compression type of the images we were trying to upload. I know this doesn’t fix the problem, but it at least gives a temporary solution until we can figure out what the root cause is. Let me know if it works for you.
