Don't think this is PT-exclusive but I'll link a video explaining how it happens. I've had my 100 Greg Maddux get set to 3 pitch count twice now, and I would like to be able to turn it off somehow.
Running on a Mac build from the App Store, version 22.11 build 82. Mac is running on macOS High Sierra Version 10.13.6, and is a mid 2015 Macbook pro. If I need anything else, just reply here and I'll see if I can grab it.
https://youtu.be/mUC83aMSTZM