Trade

Hi, I have a problem with trade. All residents cannot disappear of the protesia when I clean up, for example, a cartographic table and a resident remains a cartographer anyway. Also with other residents. The inhabitants do not change in the residents, that is, the terms of trade are the same. I can not allow you to buy a jungle researcher card. Traveling around the world I find broken portals but there is nothing in the chests, I'm sure that I was not there.