Atlas Hardlines Disappearing

Does anyone else have the problem of some tagged hardlines not appearing on the Atlas? I run most of my missions in Westview, I know I've tagged them all as they are still listed  in my hardline directory,  the icon for hardlines only shows up for a few and is absent for all of the others. Is this a known problem? Do I need to re-download any files? I've tried the full file check at the login prompt but it says everything is ok.

Thanks

I often use the atlas to find out the closest HL to a mission, usually because I miss my op's suggestion of HL due to me reading the mission details. Sometimes there would be a hardline closer to the mission area than one which I see on the atlas, so I get annoyed when running or HJing through an area, getting shot at by everyone and their dogs and see a HL right next to the door i'm trying to get to!