Selected State changes to unselect

Hi,

found the problem. I have set the same button set on button 1 and button 3 via right click and Button set function.

My fault, thanks for helping :D

For future reference: 

• Any object with a Normal state and a Selected state will toggle between those states when clicked.

exception...

• When objects with a Normal state and a Selected state are put into a button set, clicking one will make that one Selected and will automatically deselect the others in the set (that is, change them to Normal) without the need for triggers.  Here's more info: https://community.articulate.com/series/articulate-storyline-360/articles/articulate-storyline-360-user-guide-how-to-work-with-button-sets