Hey Marco… Marco here.
I have got a similar issue after completing Stage 3 TFA race.
It shows up in Companion, feed, Strava and I even got the Zwift mail confirming and thanking me to completing stage 3.
Anyway I am not in the ranking and I didn’t got the “badge” for this stage in the TFA board…
I had some connectivity issues during the race, but no problems saving it as it shows up everywhere (but no rank/badge as said).
What was your problem as it seems similar to mine ?