Why does the Xiaomi Pad Mini stylus sometimes feel unsmooth in third-party Apps or stop working after a firmware update?

The Xiaomi Pad Mini and Xiaomi Focus Pen have been carefully developed and optimized, and the stylus firmware has undergone significant updates in recent OTA releases.
Third-party drawing Apps have their own specific software settings, which can affect stylus smoothness. This is normal, and Xiaomi is continuously optimizing compatibility with popular Apps.
The stylus firmware package has undergone significant changes compared to the previous version. If you experience this issue, please re-pair it with the magnetic pad. We are also continuously optimizing it. Thank you.