InputField not triggering on screen keyboard in Android

I have tried clicking GameObject > UI > Input Field to add one. No settings changed from there.

I then build an APK of this and open it in Android Studio device simulator.

The app opens fine and I can see the Input Field. If I click it however, it does not trigger the Android on screen keyboard. I can type into it using my computer keyboard, but the touchscreen keyboard does not come up.

If I add a script to the scene on Start() with the line: TouchScreenKeyboard.Open("entry text", default, true, true, false); it opens up the keyboard just fine. So clearly it can load the keyboard but it is not.

How do I get the keyboard to load properly on clicking an Input Field? Is this a glitch of some kind?

Also if I set the Keyboard with the above options, it allows the entry text box to grow as big as I type into, meaning it can fill the screen if I write a long enough message. In actual apps, usually there is a viewport and scroll window for the entry box so it doesn't fill the screen even with a large message.

Is there some way to make it do this as well?

Thanks.