Compiler/Vidmaster contract MAJOR issues

This is now the THIRD weekend I have fully completed all cryo contracts only to encounter a critical bug that prevents me from the final contract. This is extremely frustrating, to the point where I am justnot wanting to play any more. I really like this game. Please read this description below, I only am able to do this very rarely:

Weekend 1: Complete all challenges. Reach compiler. Kill Compiler. Compiler does not drop a ganglion. I posted about this. You asked for a clip I didn't have. I dont run shadowplay or capture software. I have seen other reports on that bug. No biggie, Ill try again when i have a whole day to play in like three or four weeks

Weekend 2: Complete all challenges, reach last one. Kill compiler. Last thing on the contract is armory box. Armory box removed from game. Super frustrating. Google and find that there is no reason for me to add to the million comments on this. Stuff happens. No problem. Ill start hoarding DNAs... if I run it 5 times then I have to get through with no bugs right? Ill try again on the rare weekend where I have enough free hours to do this.

Weekend 3: Wake up sick on saturday morning. Perfect. Can spend all day doing this. Do all challenges. No bugs, just compiler left, awesome! Run 1. Get up to labs. Second battery receptacle cannot accept batteries. Sit there trying everything. Eventually just have to leave. (Thats bug 1 in this report). Run 2. Get up there again. Batteries are working. Awesome! Get up to compiler, with a three man that has done it many times. Compiler starts, spawns double the amount of bubbles. Suprising, but not impossible to deal with, until we realize that even with effective bubble control he doesnt seem to be taking any damage, and wont move from a specific spot on the low ground. Crap. Hes glitched. We eventually run out of ammo, then time, after like 10 whole minutes in the room. We brought a borderline paranoid amount of ammo, including a salt wages with as much in one clip as most people bring to cryo. We leave. Run 3: We get up there. Again. We bring everything. Again. We even hear a team get up to the room behind us as we enter the boss room. Funny, just missed us! We start the encounter. Bubbles look fine, whew. Start up damage phase, everything going as normal. Just rinse and repeat. and repeat... and repeat?? again, hes not even stuck this time, but clearly just not traking damage. It got so bad that we had to go back in the airlock. While in there I comm to the waiting team "Hes glitched... were coming out. If you kill us you kill us but were just not even up for a fight." They respond with "Bro what is happening in there! Youvbe been in there for 10 minutes." They LET US LIVE. Even a fully kitted cryo team who was thirsting after our gold stuff felt so bad they let us extract. 

Please. PLEASE. Give me my vidmaster title. I have earned it now 3 times. I have played your games since I was in second grade. Halo was the first game i ever had. I have more hours in the destiny franchise than any other game. I have never once complained about server outtages, about glitches that made me lose things I worked hard for. But I love this game. This really frustrates me and makes me feel like playing isnt worth it. Please.