Not sure if this is a Psyker error or a storyline error.  It’s not Nest of Vipers.  I’m like lvl 9 and trying to finish the 3rd location mission in trying to find the Magos Biologis to repair the Space Marine.  I find her, finished the mission, but then ran into the same problem that others have mentioned... delay in teleporting out, seeing a loading screen, then being shown the same map level screen where I just teleported out of - no character visible, but I could pan the camera as if he was there, then another load screen until I finally made it back to the command deck of the ship.  I don’t believe any of the gear I found in the level made it back with me.  After that, there is no option to select the mission again, and the mission listing shows I still need to complete it.

PSN ID:  Ryokoosha_152

Character:  Prothius (I think)

Class:  Psyker

Thanks!!