The Intensity Minutes algorithm on the Forerunner 55 has a software bug regarding custom heart rate profiles. I am a 73-year-old runner with a custom Max HR set to 150 bpm and a Resting HR of 48 bpm. Recently, the watch stopped tracking vigorous intensity minutes entirely, defaulting a 24-minute high-intensity 5k run (average HR 146 bpm) to basic 'moderate' minutes. The software overrides manually selected 'Zone 3/Zone 4' vigorous triggers if the absolute BPM numbers look lower than Garmin's standard age-bracketed algorithms expect. Please fix this calculation
very frustrated and probaly becoming an EX customer