Garmin 830 + New HR sensor

My old Garmin HR *** strap Sensor died and so i had to replace it. I have paired a new sensor but unfortunately a lot of my information has disappeared. Vo2 Max and training status have all stopped working. I have done around 10 rides with the new strap and still no change. I can see a full history up until the point my old unit stopped working.
I have also in the process purchased a Fenix 7 watch and connected it to Garmin connect as well. The watch seems to show my V02 max but no training status.

Can someone help me get back up and running?

Thank you