When running the investigation hunt for the martyr, after 3 clues, i was tasked with rescuing a tech priest and escort him to a safe extraction point. After cleaning up the whole map i proceeded to the extraction point. The tech priest and all 3-4 guardsmen were following me up to the door to the room where the extraction point was located, but then refused to enter and complete the mission. After running to and from that room, to see if it was possible to get the tech priest to spawn inside the room, for a good 30 minutes, i had to give up, and had to abort the mission. Bug 1.

I then get the message that i have to retry the mission. All fine and dandy...but...there is now not possible to start the mission again. Travel to next mission button is greyed out, and there is no investigation marker in any of the sectors. Due to this, i am permanently locked out of progressing. Very nice Bug...and its nr. 2.

Not to mention that the previous investigation always crashed in the same location (mentioned in several posts either here or on reddit), and we had to take an alternative route to get past the bug, causing the mission to fail, due to the extra time it takes (or at least in my case). 

That is two game breaking and one very anyoing/time wasting bugs in only 2 missions. As a developer myself, i know how easy bugs are created, but i still wonder if there as been done any testing of these before they were released at all? 

Is there a simple solution to this permanent progression lock, or do i just have to bite the bullet and restart a new character?