Some main missions keep locking and i can't progress any help?

So some main missions keep locking and i can’t progress i reinstalled the game i verified it i did everything. the only solution that i found is to go in someone else’s game and complete the mission there but i hate doing that. any other fixes ?

PC/ win 10/ GTX960. : I’m having a similar issue with, Atlas, at last. I’m doing the first run through solo, and at the end of the mission I have to talk to Reese and make a choice, both choices show on screen but I’m unable to choose, neither key is responding. I’ve relogged, completed side quests but I can not get the choice keys to work