Yep, the Delamain missions are totally fudged for me, I've found about 6 Delamain cabs, everytime I'm in the vicinity I get the call from Delamain, but no matter how many times I press the answer-call button it doesn't work. It's exclusively the Delamain calls I can't answer, all others are problem-free, fixers and other contacts are totally fine to answer. As a result I can't activate the mission, can't scan the cab or anything, and there's NEVER a call-back from Delamain, even after I exit the area, by fast-travel or other means. I've tried calling Delamain, but nothing, tried destroying/damaging the can, nothing. It's been like this since day 1 with no update patch, even tried uninstalling and reinstalling the game, absolutely NOTHING works to activate/fix these missions. It's infuriating and extremely disappointing for such a large number of missions included, and also the subsequent missions that have to follow.