Playing Approach to Thistletop with Kyra, Merisiel, Sajan, and Ezran (in that order). Ezran encountered the Collapsed Ceiling barrier in The Woods, and failed his check. I moved Merisiel there to defeat it, but now there are no interface buttons that will allow either character to encounter the barrier a second time. I restarted the game, but it had the same results. I can zoom in on the barrier card, but no interface options appear.
Cards in hand
M: Longbow+1, Mwork Tools, Sage's Journal, Dagger+1
E: Guard, Invisibility, Cape of Escape, Mirror Image, Qtrstaff, Stride