This has started the last 2 trips to the lake. When I put the trolling motor in the water at the 1st stop everything is great. When I move I always cut the power to the transducer. When I stop to fish and put the trolling motor down, I turn the power back on to the transducer I get this screen. If I lift the trolling up enough to get the transducer out of the water and then put it back down this goes away. Happens every time I move during the day. The screen is clear each time I have to raise the transducer out of the water and put it back down. Never happens at the start of the day, only when I move to a new spot.