Havent seen this anywhere but there is a bug with Gale after he joins your party.... Spoiler below
When you have a conversation with Gale in camp, at some point he disagrees with you. He throws a fit and leaves your group. Then you camp. The next time you camp Gale shows up in camp with no cloths (his bag is given to you when he leaves the group). Gale wont talk to you in camp. After camping a third time (each time Gale is still in the camp without cloths), he will have an exclamation over his head and you can talk to him again. He offers to teach you magic (dialog about how Mystra is a beautiful experience he wants to share). After the conversation you can ask him to join your group again. When you ask him to join, he accepts ("With pleasure. Lead on") but is not added to your group. No matter what I do he wont join again.
Anyone else encounter this yet?
Thanks!