Have to click button multiple times to trigger event

I currently have a button that has a event connected to the onClick() functionality. During the testing phase when I had only 1 object in place it worked as intended (only 1 click is needed to trigger event).

Now to the "full product" I copy/pasted that initial game object 30 times and changed the config as needed (had to change the image targets in a database and the position).

No when I test it, most of the objects require me to click the button multiple times to trigger the event. But for some others 1 click does the trick. I don't see what the difference between those two types of objects is seeing as I copy/pasted the same initial object.

Anyone faced a similar situation before or have a idea of how to resolve this?

 

Found the issue, turns out somewhere during my edits I deleted the onclick() event. So once I fixed that up it's opening up with one click.