PS4 In the Shadow of Starlight Typhon not progressing Bug

Not sure if this is best placed here so if there is a better place please let me know…

Has anyone found a sure fire way to get passed this bug?

Just been slapped in the face with it and have tried everything so far that I have seen (killing yourself and respawning, quit and restart, load new character then switch, join a game that is on the mission) but joining at the mission (with it being so close to the end I imagine that there will be very few people still on it).
If anyone is on the mission on TVHM please let me know, I really don’t want to reset the missions all over again.

Also, how is it still a thing that this bug exists after all the fixes they have brought out!?