Heart rate doesn’t work correctly. Using Garmin instinct 2 /w chest strap. Hr is fine with Garmin app afterwords but app says my hr is random (once it selects a number it will stay there the whole workout the. Say I’ve burned negative calories. For eg. at the start of the workout Will pull hr of 107, then the rest of the workout shows 107 even though Garmin shows 180 peak)

Tried multiple times including install and uninstalling etc.