Why does clicking on the UI work every time on a ready-made build for Android?

Question

Unity

I made a build for android and when checking the pressing on the UI (right-left button), they work every other time. Everything works correctly in the editor and in the unity remote. Buttons are made through Image and Event Trigger.

Answer 1

Does everything work correctly in the editor with the same aspect ratio?
It’s just that when verst on devices, problems can arise, the code is not taken into account the markup and some images fit on the button from above, blocking them. It's worth seeing if some transparent elements or texts with active RaycastTarget checkboxes can fit on the buttons.