I only use an iPhone 7 plus firmware 13.3.1 for zwift (lattest at this time) - Bought only to zwift.
Paired to a wattbike
On a wifi network.
My first ‘mission’ ride I did on the iPhone and so did NOT ‘opt in’ (I understand you can’t) but the system gave me a MTB , rode, saved.
Following help here I then used Windows PC and ‘opted in’ that screen now shows “congrats” confirming ‘opt in’ on both PC and iphone
2nd ride MTB
Rode exactly the same as usual, no crash, (so no resume)
I just pick a ‘route’ and ride based on time then use “Menu” “End ride” “save” (to strava)
Same world same route for cool down
Images added - These may not be in order - These were taken WITHOUT riding and appear as I would normally see them and use them.
They show the pre ride screen, ride selection WITH MISSION 0m, ride select sub screens, then one ‘in ride’ showing the MTB, menu, end, save (I deleted that ride as it was a 0m)
I will be Zwifting later for 1hr ish if you require more info - data just ask, Hope it helps, Thank you.