Logic Pro 12: Missing Legacy/Ancient sounds

Hello everyone,

Sorry for my poor english.

I upgraded to logic pro 12 from last upgraded 11 version two days ago and

downloaded / installed all what wasn't from the new sounds library ( = a 94,27 Go Logic Pro Library.bundle exported to an external ssd).

In "Library" or hitting Y, before upgrading to V12, I could find some old stuff inside of Legacy/Ancient folder for each categories ( Such as Liverpool bass in "bass", Male rapper voice in "vocal" for instance etc.). Lots of this legacy and ancient stuff has become favorites.. but I'm unable to find it in V12.

Is it gone with V12 for the first time ?!? Is there a way to recover all this legacy/ancient material ?

Thank you a lot in advance !