Cycling vo2max and performance stats using both Fenix 6 and Edge 520

I am usually recording my rides with Edge 520 and Fenix 6 pro. Edge 520 just to watch the data while riding and Fenix 6 to keep the recorded data since this is the only way to update training load, training status, and metrics such as respiration rate.

Today while I was riding in multisport mode I accidentally pressed the lap button and didn't know how to return to the ride part (are there any ways to do it?), so I decided to end the multisport activity and start a new ride for the remaining part. I ended up with two activities in Fenix, one multisport and one ride. 
In Edge 520, the complete ride was recorded correctly, so I decided to upload it in Garmin connect in order to sync it with Strava. 
After that, I synced normally the Fenix 6 activities and deleted the Edge 520 ride from Gramin connect.

My cycling vo2max is usually updating after my long hard efforts on Sunday rides/bricks. Last week was 48 and my training status was "Productive". Based on power from Vector 3s the avg power was 143w and the neutralized power was 167w.


Today, after this mess, my vo2max dropped to 43 and training status to "Maintaining". The avg power was 185w & 163w, neutralized was 195w & 179w respectively, the same distance to last week's ride. This ride was definitely stronger and more productive than usual so I was expecting the vo2max to raise or at least remain the same and not dropping. 

Is this due to uploaded and deleted activity of Edge? Are there any tricks to recalculate these metrics? Should I in the future sync just the data from Fenix 6? What's your experience using these devices together? How the vo2max and training status is working? If I delete the activities and sync them again from the watch should I expect different results?