The back button doesn't work when tapped on my device.

On my device, when I try to hit the back button in the interface, it doesn't work. I hit it and nothing. And to get it to work, I have to turn my phone upside down, and it's kind of annoying. It used to work fine, but in 1.21.90-1.21.92, I have this bug. This has also been happening in beta versions, and the problem hasn't been fixed yet. I hope they fix this bug :)