Bluetooth mouse not working correctly

I use TinkerCad quite a bit. The computer is my usual go to device. Lately I’ve been traveling so I wanted to use my iPad. I have a brand new iPad mini and have installed TinkerCad on my iPad. I always use a mouse with TinkerCad so when I started using the iPad and having no mouse I was not doing well with only a touch screen. The Bluetooth mouse (Logitech Pebble Mouse2, M3505, high rating for tablets) paired easily with my iPad and I tried it right away with TinkerCad. It moves around as a mouse does although I’m not excited about the round dot instead of the arrow pointer. (I hate it) Anyway I can use it to select some things but when I click on “create” and then “3D”, nothing happens. The program should go to the creation design base/bed. I also can’t look at previous designs. Nothing happens when I click on them. I can use my finger but why have the mouse? Any ideas?

Thank You