might be a good idea to unsubscribe from everything T6, go into your addons folder and make sure everything T6 related is manually deleted as well, and then resub to T6 stuff. usually when i have map problems this helps.
if this doesn't work, you can also try verifying your cache for every game you have mounted. awhile back i had both episodes mounted but had issues with their content, and when i verified them a thousand something files werent even there for some reason.