In Baldur's Gate 2 it would keep repeating "you must gather your party before venturing forth" if you wanted to transition to another area but one of your characters got stuck, or was tons faster than the rest (boots of speed). It was pretty annoying.
About ten years ago I found the developer who added that so I kicked him in the head till he was dead, gnahahahaha.
The soundtrack to my childhood.
Baldur's Gate 2.
"You must gather your party before venturing forth"