hello, something is wrong on windows, with the ContentVersion value in regedit HKLM
if Irish Harp is not 1.0.2 Kontakt 7.10.6 and less will not see it in the library list 1.0.1 is hidden
you can even play only with regedit to check this.
it should normally show the library, even in a previous version not updated.
it seems to be a bug that occur in all builds after 7.7.1,
it is broken since 15/01/2024 and the 7.7.2 update.
Maybe it can be corrected in Kontakt 8 before make it public. good luck!