The loss of clear vu and dual beam makes sense. The inability to run a flasher with the graph baffles me though. I’m just using the 4 so I can’t do split screen with a flasher at all, regardless of my transducer.
I have a Striker 4cv Plus it has 3 different split screens, 2 of them I can configure different screen combination including the flasher. The ducer isn't in water, hanging off kitchen table, so nothing is showing on either screen. But any combination I setup converts back to default when I close it, I have to put the flasher back in.