Sadly, I forgot to snap a screenshot, so I'll have to describe it.
This happened a day after Gale's dialogue sequence with Mystra when I took him back to the Tabernacle and had him interact with the statue a second time. Instead of getting a line of narration, the game switched to conversation-mode, putting the Mystra-statue in front of its pedestal and next to Gale and facing him, as if it was an NPC having a chat with Gale.
This "froze" the game as if Gale *was* having a conversation and I had switched over to a different character. Camera stayed locked in that "external" mode and didn't switch to conversation-mode.
RMB/Space to skip put everything back to where it should be (statue returned to its pedestal).
S.
