Video capture black screens after a few hours.

[Mattk]

So this problem just started out of nowhere. Been streaming using an el gato HD60S for a year now with no issues. 2 nights ago after about 3 hours the video feed for the capture card goes completely black. I cycle scenes and it’s back. Every night now after about 3 hours it’s the same story. Any ideas? It’s only the video capture that does this.