We've got documented this difficulty to Apple but they may have but to take action to stop this sort of action - Sonar recommendations: Use your sonar to spot abrupt depth changes, 15–18 ft contours sloping toward key river channel. Watch for suspended fish strains (fish arcs) in recent breaks https://brooksiblak.link4blogs.com/58782329/the-fact-about-2752e-that-no-one-is-suggesting