In Xamarin.IOS when you set the legend to Horizontal and Top it will create a legend at the top then allow you to scroll horizontally to see all your LineSeries. In Xamarin.Android when you have more Series than can originally fit on the screen, the legend malfunctions and takes up the entire screen. Picture will be attached.
Thanks for reporting this issue. I could reproduce it on my PC and created a task to investigate why this happens.
Edit: I fixed this issue in our internal build and fix will be available in our next nightly build.
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