Drag is not stared when mouse is not moved very slowly after left mouse button pressed

[SLMJanMatyssek]

Hi,

I have a strange phenomena since I updated to win 11 (my pc is a touch pc if that's relevant). I have two draggable elements "on top of each other" imagen a movable tile in a movable tile.

When I click near the edge of the inner tile and start moving my mouse, it very often happens that MouseMove is not fired for the inner tile and than DragDrop.DoDragSourceMove(object sender, Func<IInputElement, Point> getPosition) is not starting the dragging because sender is not longer the VisualSource. (Like in the screenshot gif of #512 but even when I move the mouse "normal", to work I have to move the mouse very very slowly).

Any Idea what's the issue and how to resolve it? The code and PC are the same, only win11 was installed.