I've just gone through this same issue and am really fed up with myfitnesspal in general. In my opinion (YMMV), the MFP app has really gone downhill since being taken over by Under Armour. For many of us who are not elite athletes, the Lose It app is much more intuitive and useful. I like my Vivofit 2 very much am frustrated by having to work around MFP quirks, glitches and bugs.
The status page says MyFitnessPal service is green now. So how do we recover/resync our data now?
- I have 2 days (19th/20th) with no calories consumed in Garmin Connect.
- Just logged something in MFP to check and not seeing it come through to Garmin Connect.
Maybe Garmin can explain how and if it is really fixed?
Working for me and others it seems. As already posted mfp seems to have gone downhill recently. I suggest you try contacting them if you're still having issues.