Cannot display Directv on an HDMI matrix

I am using a HDMI matrix to push video from Directv, a computer and a firestick to a 4 tv video wall and a tv in the equipment closet. I have no problems viewing the firestick or computer but the Directv H44-500 box is another story. I can view DTV if it is direct into the video wall processor or small tv but not though the matrix.

I have changed input and output ports on the matrix and I have also swapped cables with known good sources so that eliminates everything but the matrix. I am suspecting an EDID issue. Would a EDID emulator or converter be the way to go? 

I just inherited this mess so any help, ideas or suggestions would be greatly appreciated.