DirecTV - Mini Converters

Is anyone still successfully converting either a component or HDMI signal from a DirecTV receiver to HDSDI using Blackmagic mini converters? We have a rack with 12 DTV units and have been using HDMI->SDI converters for the past 5 years without trouble. The past 2 months, the SDI signal goes to black for ~1s about once or twice a minute. We tried using the component output and have the same trouble.

Looking for any advice on converting DirecTV signals to SDI.

Thanks!


Kevin