The peak power, FTP, etc are no longer being updated on my new (for me) edge 520+. It worked for a few days then failed. Randomly an unintelligible message appears that says “and password in settings”. There might be some text before that is being cut off. WTF?
On the same device the xert workout player works perfectly. There is nothing special to be seen in the phone garmin connect app.
EDIT: I am no that sure anymore that I ever saw the FTP being updated on this device.
Common with Garmin firmware updates - CIQ settings tend to get messed every update, unfortunately.
If you’ve re-entered Xert User/Pass for each data field under their CIQ settings, you can try switching profiles and then switching back to the profile you’re trying to use. This forces the CIQ data field settings to refresh. HTH