Been running this mod for ages with no problem.

Yesterday, a dragon attacks the edge of Whiterun and now everyone is permanently inside apart from the guards. This includes inside the city (the carriage driver is now by the fire in the inn). I can only assume the script has gone awry.

Has anyone got a suggested fix for this (short of loading an older game)?

Do a search i seem to remember reading about this plus i believe this happened to me and i went to another city and came back and everything was reset.....i cant be for sure but i might have just went outside the city and then back in.

Are you using Isoku's Wet and Cold? If so have you read Arthmoor's sticky post on the Nexus comments?