Training Load not updating anymore

I am also having the same problem, using a Fenix 6. Any help would be appreciated 

I had hopes that with the current Garmin Connect app update on iOS, this somehow gets automatically solved... not. :-(

Still weird that this happened from one day to the other. Activities are syncing, calories, for example, are updated, but no training load anymore.

See this page: https://support.garmin.com/en-GB/?faq=VxKazDQ2mkAmDoQbJriEBA

There are some interesting points there:

"You must have a Training Status capable device that you are actively recording running or cycling activities with. If you remove your compatible device from Garmin Connect, you will not receive Training Status data from a third-party or Tacx app activity. "

"To process Training Status data from the Tacx Training app or a supported third-party activity, Garmin Connect must sync the activity data with your compatible device. To accomplish this, your compatible device must be powered on and fully synced to ensure that all data has been processed and your Training Status is up to date. Exercise load data from the Tacx Training app or third-party activities will be visible in your Training Status reports, but it will not be visible in your activity details. If using a compatible Edge device, you must sync your device twice for an updated Training Status to display in Garmin Connect."