When dropping an effect on the wrong track there is a [+] sign.
Just suggesting to replace cursor with a "prohibition sign" or something like that (very visible maybe) when an effect or something else is dropped on the wrong place... it this case and audio effect is dropped on a video track and is present a PLUS sign on the cursor. (but effect just "disappear" when releasing the button making the idea that the effect is correctly applied)
as an example i placed a GIANT prohibition sign.. because maybe the small one used when dropping clips on the wrong places is a little bit small to see...
Edited by Davy Bartoloni