Funny you ask. Yep, the Tempest seems to be where my game acts up. Characters phase around in a weird way from time to time, in dialogues or just when Sara enters a room. I've started a conversation in one room and somehow been standing in a different room when finished talking. Characters lean against invisible railings sometimes. FPS noticeably drops, unexpectedly. I'm sometimes sure the doors are taking longer to open, but then it seems fine.
It's strange, but I can't really remember any bugs or glitches on planets either. I always get loads of dialogue between squad mates, for example. Combat is always snappy and responsive. And I think I've always had cool, ambient background music playing on each planet I've been on so far.