ALERT: For users of SketchBook (UWP) that was downloaded from the Windows Store, please change your language to ENGLISH (US) and restart SketchBook after the reboot. Please let us know if this makes SketchBook usable.
If this solves issue, please let us know the language your device is set at when it’s freezing/crashing.
NOTE: Can you also try the DESKTOP version of SketchBook? The download is here:
www.sketchbook.com/thankyou
David Lau