In response to your questions, I have the audio also outputting through the Black Magic device and there are no error messages for dropped frames. This is an animatic, so I’m reading 1920×1080 JPEGs off a RAID-1 Thunderbolt G-RAID drive. And just to specify, signal on the TV is in sync with the audio running to the TV. It is the program monitor and TV sync that is the issue.
As of now, I’m thinking the delay might be due to media buffering on the Black Magic device. This is an animatic, so I have cuts every few frames, so it is switching back and forth between a lot of media.