Bugs in Wildcard Missions

I just wanted to bring my Harlowe to max UVH level, but get totally stuck on "His Vile Sanctum". It is a mess with "One Crit Wonder" anyways, but it annoys me that the mission can bug out and you have to restart the whole mission. Once Bruce just did not move anymore, another time I was not respawned just got stuck in limbo. Whatever Gearbox thought was fun about how UVHM is achieved in BL4 does not work for me, if 1) the missions are overly long and 2) bugs set you back a long time. Just not fun.