i created a simple project with a MainPage that contains a CollectionView with a CustomView as DataTamplate. In this view there is a second CollectionView. The CollectionView is the root element for teh page andhe for the view too. All works, except a strange padding/margin (Top,Left) that I cannot remove.
The problem is present on all the pltaforms (iOS, Android and UWP).
Thanks in advance!