I just finished choco-caravans with a party and had gone to collect the reward as usual, when yet again i'm smacked in the face with this message.

Drybone caravan escort duty complete!
You failed to contribute to safety of the caravan.
I'm assuming this was a type of countermeasure against leechers added in the recent patch... But gosh..

The feeling of frustration is quite hard to describe after having dedicated 15 minutes of actively defending the caravan with a party, yet not only to be denied any compensation for the time invested but to be outright told that you didn't contribute. Bullshit.

I'm not certain as to how this is worked out by the servers, but i am certain in that it simply is not working.