Bad accelerometer data captured by FR55 after latest update

I develop CIQ apps for tracking racket sports ( https://apps.garmin.com/developer/6a6d6521-4f13-470f-aa51-bc8d4ad0886b/apps ). Core functionality of my apps is capturing and recognizing strokes based on accelerometer signal.

Recently I got couple of reports from Fr55 users that on their devices no strokes are being detected. Looks like latest update introduced some issue with accelerometer data aquisition. I'm pending users to provide me some raw data but I'm wondering if anyone has similiar issue?