Feral Heart

Ok, so I've run into a few issues with FH on my mac and would like some help, I can launch and get into the game just fine. All the original maps in the game seem to work. The issue arises when I try to download maps for other groups or even a few of the public maps on the forum. I do everything as i've been told to do but when I log into the game nothings changed. No new portal, no nothing. Same thing with the markings, I somehow deleted that folder from my lap top and now despite having re-downloaded it most of my characters still look like white marshmallows. Does any one know what's going on? Am I missing some sort of program to help integrate the maps and new markings/items properly?
Any help would be greatly welcomed and appreciated. Thank you!!