Shutter doors and interior rooms

[Jeffrotull]

I have this free-form dungeon that has shutters that seem to work fine despite the fact it is an interior room set on dmaps. I tried to replicate it on another map and it wont work. Both are set to interior on dmaps. Both have their levels set on dmaps(although both different levels 10 & 21). Neither have treat as dungeon or interior on data screen. Both have a shutter door set using tools > door > shutter. Didn't see anything else of significance that was any different. I am perplexed. Any help?

[The_Amaster]

Look at the "Block-> Shutters" screen flag to start. If that isn't it, we'll continue.

[Jeffrotull]

I should of been more specific. In my first dungeon my shutters worked and the second one the shutters dont even appear. I figured out if I put the actual shutter tiles (lockblock) over the door it works properly except one thing. Normally if you go into a room and its a shutter door entrance then the doors close behind you. In my case(interior type dungeon) the doors wont even let you in the room.