Directv and HDMI Splitter Compatability?

My old SharpVision XV-Z20000 projector doesn't like a 1080P signal that all my other projectors, Runco, Marantz, and JVC, have no problem with. The signal is going from my Directv to a Denon AVR and then to a EZCOO 1x4 splitter. The splitter is designed to take a 4K signal and down-rez it to 1080P. As I said, the signal works on all the other projectors but not the SharpVision. A photo of what shows on the screen is below. It's probably some kind of mismatch with the RGB/YUV formats I assume but changing those in the menu doesn't fix it. If I eliminate the splitter the problem goes away. Also, my other video sources, Shield TV, Firestick, and a Panasonic BR player work fine. Only the Directv stream/signal doesn't work. So their is something different about the DTV signal. Can it be changed in any way to perhaps be compatible with the splitter?