How to block "touch input" to scenes loaded below the current scene ?

I have a scene (Game shop) loaded on top of my Game Scene with additive loading.

The problem is - After loading the shop scene i can touch certain areas of the screen and that would trigger the buttons below (in the game scene).

I need to block this since and was searching for something like " block touch through ". However couldn’t find anything.

Things i have tried :-

  1. Tried putting a panel behind the buttons in the shop scene
  2. Tried putting a transparent image behind the buttons in the shop scene

Both didn’t work out. Any suggestion would be appreciated.

P.S.

  1. I have to keep the shop as a separate scene since it needs to be called from different locations.
  2. Putting a panel or image on top a button allowed me to block touches to that button.

Did you get something?