Snaps do not work on new planes

It seems that snaps do not work very well on new planes. For example I added a new plane through an edge at an angle and when drawing on the new plane, for some reason I cannot snap to the end points of the edge that the plane was created from. Also snapping doesn’t work very well to end points of all new lines on the new plane like it does on the original planes.

That’s exactly what we are working on currently. However, if you could post some screenshots with some kind of “wishlist” for snapping, that would be really helpful.