Okay weird question, but apparently I have a Teutonic Minor Chapter House, but I can't recruit Teutonic Knights? I built it by turn 5 (its turn 20 now). I recruited one Rittenbruder and then the option disappeared from my recruitment list as well as the building description

Do I have to build the next level? Or build it again?

edit: did a test run, after turn 5 I lose the ability to recruit them and destroying the chapter house doesn't change the description back to normal