First thank you so much for taking a look into this.
On my end, the sprite isn’t over the button so I am not sure what is the problem on your end.
This is the picture before clicking while ZOrder is ON :
This is after clicking with ZOrder ON:
This is when ZOrder OFF and button was clicked (Expected result):
Btw, there is another issue I found which you can see in the picture (notice the title bar is over the text). it cause other issues with touch clicks but leave this for now