Somehow the left stick blocks the Poke interactions

For some reason, if I move the left stick away a bit (I don't move in game), everything that Poke Interactable uses stops working. The buttons don't click, the canvas doesn't respond. What could be the problem? There is no problem with the right stick.

When I release the stick, everything comes back to life.

For example, if I aim my finger at the button, it goes into Hovered state. Then I pull back the left stick and move my finger anywhere. On the canvas, the button is still in Hovered state (but I am no longer pointing at the button at all). If I release the stick, it will go back to its normal state. How does this work?