For anyone like me that had problems trying to exit Longrest by clicking a bedroll and being stuck with Characters sitting there with speach bubbles i kind of found a solution, select a Character that isn't one of the four on the bedrolls and speak to another party member standing around, for me this was Wyll. Tell him to leave the party, when he asks are you sure say no and leave the conversation. This should take you to the campfire video outscene.