Touchscreen bugs

I’m completely new to all this and just making a simple game for my friends and for fun. I’m just trying to get the basic settings right before I keep going. I have tested this on my Samsung Galaxy 9 and the touchscreen controls are quite buggy, sometimes they work and sometimes not. I’m wondering where I might be going wrong?

I appreciate any help!
Thank you!

You need to make the buttons bigger, I’m guessing they dont press right on the phone…

Also could you explain by what you mean by buggy? And just in case, what Android version you have?

I agree with JR_01, increase the size to a 2 x 2. This way you have a bit more chances it will actually move.