Virtual Keyboard is disabled

Hello all,
I’m stuck with a bug I cannot understand:
There is a login page on my app. Whenever username (email address) is activated, the virtual keyboard appears but it is disabled. Focus is always on the “a” virtual key and trying to click on any other key with the RC fails. I can click the RC Back button to close the virtual keyboard.
Any idea what might be the problem?
I can share a short video if it might help.

In webOS TV apps, the virtual keyboard is always enabled when the input has focus. So please check if the input has focus. Thank you.