No, I'm not. But you just gave me a flash of inspiration.
This is a simple example for the magazine, using labels that look like blocks to explore logic in the game. So I add a lot of labels to a view, and remove them to refresh the pieces.
It works, but it's not meant to look pretty. At least it worked when I wrote the code. And didn't work now.
Then when you mentioned accessibility I remembered that since then I installed LastPass Premium on my phone, and that has an option to allow it to fill in login dialogs in apps for you, which you enable via the Android accessibility screen. I had that turned on.
I just went into the phone settings and turned that off, and now it works again.
So, nothing wrong with my code. Other than that it was probably confusing the hell out of LastPass!