I am having a really weird bug where i arrive at Kvatch, in the mission to save Martin but there is no oblivion gate outside the gates of Kvatch. I can walk straight into Kvatch and into the chapel with no problem but Martin refuses to come with me as i have to complete the quest in Kvatch. I talk to the guard captain but he is still asking me to shut the gate! Also, I am using mods and i can provide the list of mods upon request. It is really annoying me as i want to continue the main quest. PLEASE HELP!!