Collision is not working with anchor on

Hello Gdevelop forum community,

I am trying to make a simple drag n drop game where we move the objects to a certain hidden point then an action starts.
I did it by using the collision condition.
However, when I try to anchor the objects and the panel from which we drag the objects to the bottom of the screen, the collision is not working. Otherwise, it works fine.

Is there a way to use the anchor behavior on the objects and also make the collision successful?
Or there another way that would give the same result?

Here is a screenshot of the code:

Thanks in Advance.