Button Drag not working properly in scrollbox

I’m currently creating a drag and drop system for in my game.

Whenever I drag the button 70% off the time the engine doesn’t recognize my drag operation.
([Gif of the problem here][1])

I’ve put a button inside a scroll box but the button interaction has been set to precise click.

Widget functions:

Does someone know a solution to let the engine register all my drag attempts correctly?