Accidentally set DUO pin longer than 10 numbers and can't change it

2

I figured out an awkward way to fix this:

  1. Unlock using app
  2. close app
  3. hold down #1 for 10 seconds. Lights become black
  4. Start app. Enter 12-digit pin
  5. It’s now in config mode (blinking red light).
  6. Change pin in app