Replay System, replays not downloading [CLIENT]

Hey all. Since replays have come out, I've had issues with being able to download them. Whenever I click the download button, the wheel spins for several seconds, but stops with an error message "There was an error with your download. Click here to try again." For reference, I'm on a macbook air (yes I don't have a multi-monitor set-up, sue me). I'd love some help with this as I'd like to finally be able to watch my replays without using something like Replay.gg or another 3rd party site.