Last week I did something weird and I think paused when activating Khal's jetpack and suddenly the jetpack stopped working (no upward thrust but you can glide similar to activating the jetpack but not holding the jump button). I was near the end of the mission and figured that it wouldn't persist, so I didn't think too much more about it. It did make getting to the gun emplacements to shoot the thumper a pain. This week the Break Narmer mission is on the sentient vessel. The problem persists through ending and restarting the mission, jumping into the void, and I even tried getting my character killed in mission with no success. Unfortunately, due to the height of the platforms in the room where you release the dropship from the tether, this lack of upward thrust makes the mission unbeatable.