Elder Bug? DEVS LOOK AT THIS: ITS IMPORTANT

Was fitghting elder on yellow difficulty, as soon as i killed him with culling the game freezes on the blow, after being froze for 5 seconds it disconnects me to the main screen and when i go back to the portal to get the loot it gives me



Gave me the challenge but couldn't get loot, i've been plagued with the guardian game crashes, now that is fixed I get hit with this, kinda discouraged...

*Update* Ok so i loggeed in today, i logged out yesterday after this happened, elder is STILL on my map on vault.. I killed elder and he dropped loot and elder is STILL on my map on vault, i can kill him over and over, im not going to but I can't really progress with him now...