The starting screen looked like this:
After I put in my card, it asked me for my PIN as usual:
But after I logged in, this was the screen that appeared!
I couldn't resist pressing the "ADJUST CASH" button to see what would happen. Here's what it offered to do:
I decided that going further might get me into trouble, and hit the CANCEL button.
This was entirely repeatable. I did it again to take these pictures. And then I tried an ATM at a different bank and it did exactly the same thing. I found a few other confused people wandering from ATM to ATM, wondering why they weren't working properly.
I wonder how long it took the banks to figure out that something was wrong.