Hey all,
the 7th mission (The Oracle) can’t be finished in online-coop because the game crashes and throws us back into the main halo 2a menu.
Specifics:
-2 player online coop
-Crash happens at around 3 seconds into the second cutscene (big room with spiralling ramps with the Heretic is behind a forcefield)
-We tried two times and the crash was at exactly the same moment
-Coop progress obviously states that the mission is unplayed in coopTo circumvent the issue, we mission selected Delta Halo but would like to finish the game properly.
-2nd player (non-host) screen shows “Connection was interrupted” just prior to us getting thrown back to menu.
Thank you very much 
-Credit to B84 W56 H88 for the post specifics, seemed to find an very similar, if not identical, glitch on the Xbox version about 2 years ago
Found his post while looking to see if it had been reported. It does Not seem to have been for the PC version. Apologies if it has.
UPDATE: Spamming to skip cutscene bypasses the crash and allows completion of the level.
I can verify this bug, exact same specifics; happens on any attempt to finish the mission, the cutscene starts then we received a connection interrupted notice before being thrown back to the main menu.
Thanks for mentioning me.
Sadly the bug still persists on XBOX (as well as PC if I understand your post correctly). The coop is very wonky and the last patches have not really helped on that front. I can’t seem to remember any crashes in the other Halo games, so H2A is the odd one out here. I will keep this topic in mind however and report if I find more crashes.
Can you work around this issue, if you both spam jump,use,fire etc.?
Since you are the most recent “crash-finder” and also have found this one on the PC version, I’d like to ask you, if you would be so kind and to submit a ticket to the support site. https://support.halowaypoint.com/hc/en-us/articles/360036218972-How-to-Submit-a-Ticket
For more references, here is my post and a post from Mad123man from a year ago (same crash):
Edit: Gimme a heads up if (or when) you submitted a ticket. Otherwise I will open one up myself, but cant speak for the PC issues since I only got access to the PC insider version of the game.
Just got off work. Going to test in a bit with us trying to spam skip cutscene. Will submit a ticket and update this post once we test that.
UPDATE: Submitted ticket. Also added workaround found to description
Having the same issue. It’s really unfortunate me and my roommate are trying to enjoy legendary co-op but every end-level cinematic is making us crash, inevitably sending us back to the main menu, and back to the very beginning of the level…
Hope this is patched soon so we can finish
I still seem to have this issue as of today. Tried it with a friend and we couldn’t get past the exact same cutscene as described in the original post. Can this receive a fix?
Having the same issue.
We also had this issue in the starting cut scenes of earlier levels. We would have to restart the game and then it would stop kicking us during the cut scene.
However, with this mission, the cut scene happens mid mission and we get kicked every time.
Thanks for the bypass trick, will try it on our next play through.
Issue still persists, crashed two times at the same point when playing with my friend. Have to restart the mission each time after it crashes.
It’s even better when you literally cannot finish the game because the final cutscene crashes the game, and then forces you back to the previous checkpoint once you reboot it! HAHA MAN DO I JUST NOT WANT TO PLAY IT ANYMORE! THANKS 343!
Bug still persists in October…
Bug still persists in January 2021
Play with classic option (non-Remastered) on this mission and it shouldn’t crash in Online Coop (at least it didn’t for me on the PC Version).