Can't finish "clearing the path" when finished in another Multiplayer game

Hi,
This might have been asked before. I played this mission with my wife, the last one where you follow Kalles truck and blow up some fnix stuff, and finished it.
Now when I log into the game on my own and play it solo it tells me that the mission is not finished and that I need to follow Kalles truckā€¦that is nowhere to be found and the garage is empty.
Is there a fix for this?

Thanks

A post was merged into an existing topic: Stuck on truck mission - Clearing The Path - FNIX Rising