FL's plugin search there's a Kontakt_2, and after some file searching i found an old version of Kontakt (6.1.1) sitting in a subfolder in my VST directory. Not entirely sure how I've missed that, but everything ...
FLStudio 20 now that it is finally released.
However, when I try to run old projects that I created on the Windows system, it fails to boot the 32bit VSTs. I have the same plugins re-installed on the OSX side ...