If this template helps then use it. If not then just delete and start from scratch.
OS (e.g. Win10): 10
PsychoPy version (e.g. 1.84.x): 2021.1.2
Standard Standalone? (y/n) If not then what?:
What are you trying to achieve?:
An image that will appear few seconds into the experiment over another already present image
What did you try to make it work?:
I added both of the pictures as image stimuli to the builder. And set the appearing image higher in the routine.
What specifically went wrong when you tried that?:
It still hides the newer picture under the older one.
Include pasted full error message if possible. “That didn’t work” is not enough information.