dave
2
After turning it off then turning it back on in the setup panel. Then restarting the computer. I got things back up and running.
I didn’t have to resort to uninstalling, but these articles helped give a little direction.
https://www.autodesk.com/support/technical/article/caas/sfdcarticles/sfdcarticles/Unable-to-output-signal-to-a-broadcast-monitor-using-BMD-and-only-black-apperas-in-Flame.html
https://www.autodesk.com/support/technical/article/caas/sfdcarticles/sfdcarticles/No-broadcast-preview-with-Blackmagic-Design-in-Flame.html
I thought I had done all that yesterday, but I guess sometimes a new day and a fresh restart fixes these stubborn computers 
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