Collision Group Editor issue

I’m trying to add groups on the collision group editor, but when I add groups, the more I add the less amount of checks I can mark.
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I want to be able to check all the boxes for the Tower group, but it automatically goes to the very bottom and default stays at the top, how can I prevent this from happening?

I checked in studio, and I didn’t have this issue. It also looks like my ui is different from yours so maybe there’s a studio update?