The only possible reason for this, is not having uninstalled KORD V2 using its uninstaller, but by removing files manually, which of course will cause all sort of problems, since you might assume you removed all files, but FSDT sceneries don't have just .BGL, but Simobjects, Effects, Scripts, as well, which must be all removed.
The KORD V2 uninstaller will of course remove them all correctly, this is for sure.
If you removed the scenery folder by hand, is not enough, you must remove the following folders:
Addon Manager\Simobjects\PBR\FSDT_KORD2
Addon Manager\Simobjects\PBR\FSDT_KORD2_MZ1
Addon Manager\Simobjects\PBR\FSDT_KORD2_MZ2
Addon Manager\Simobjects\PBR\FSDT_KORD2_MZ3
Addon Manager\couatl\KORDV2
And possibly this one too:
Documents\Prepar3D v4 Add-ons\FsDreamTeam KORDV2