While this isn't one of the known issues of the issues we're working to resolve in v14.0.x.xxxx, we'd love to have you help us to diagnose this and ultimately fix it.
1. Update to the latest firmware at http://www.dynonavionics.com/docs/support_software_SkyView_test.html.
2. After you observe the issue, export a Dynon Diagnostic File to us at http://www.dynonavionics.com/docs/upload.html.
Info for Dynon:
After upgrading to firmware 14 I noticed that the video is frozen sometimes, usually after some time into the flight.
May be Dynon can have a look into this too.
