Nexus 10 OmniROM 4.4.3 Nightly Screen Recording

Screen recording seemingly working fine, except the Stop Recording button in Notification is missing. To stop a recording, I press the Screen Recording option in the Power Menu again.
This, however, is a hit or miss; often the resulting recording is unplayable. Sometimes there will be two broken mp4 files. It would seems pressing the Screen Recording option again has actually started a second recording and not stopped the first one. Other times it works just fine. I have to try my luck to get a good recording like this one.