I recently had a 4 week or so break where I did no exercise. Before and after that, I have mostly been doing indoor and outdoor cycling with a bit of running occasionally. I have a power meter on my bike so both outdoor and indoor rides have power data and I always use a chest strap for accurate heart rate data.
Now before the break Garmin was regularly updating my FTP, and it was usually very close to my ftp being tracked in a different platform that uses a different algorithm, which increased my confidence. Since the break though, the FTP chart just shows "No data available" even though I have been doing bike rides with power and heart rate data. Also it shows my VO2MAX went down a bit but I'm not even sure if for the last few rides it is even recording a VO2MAX. My vo2max is not budging though I feel my cycling performance is improving.
I would appreciate if someone knowledgeable can tell me what is wrong. Should I open a service call with Garmin?
Thanks.
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Saad