In general, if the rest of the team still completes the map, it’s considered completed for everyone, not just the ones alive at the end. OP’s post mentioned nothing about whether they completed the map.
If the map was completed afterwards, this does indeed invite investigation. If not, it’s completely consistent with other things.
I did see a report on Reddit that you only receive Okri’s Challenge progress if you are alive when the map ends. Since the Abduction mutator prevents you from being revived, you don’t get credit.
This also means you should opt to wait and revive heroes at the ends of maps (when not playing Abduction deeds) and also shouldn’t down them for giggles right at the Bridge of Shadows.
(On a side note, I severely dislike the Abduction mutator as when someone dies it’s either “restart the map” or “go afk for possibly 30+ minutes while the team finishes without you” and is completely anti-fun either way.)
Oh Ok, interesting. But you still get loot even if you get abducted, and I feel that I have got challenge progress before (but I have no proof, but you still get the “Completed a deed” banner at the end screen), so it seems strange that you would still get acknowledged for finishing the map, but not finishing it, if that makes sense?