Library on external HDD. Where to set pref?

[DizziDeCazz]

Hi,

Spark does not find by Library that is located on an external HDD.
I feel like I must be missing something very obvious. The Library  ( along with all V-Collection was relocated to external HDD via Software Centre.
Spark does not automatically look for it, and for the life of me, I cannot see where to set the Library location in preferences.  I can see the files and folders via 'Library - Disk' but no place to set it in Prefs.  My other Arturia softsynths seem to default to the external location just fine (though I've not specifically checked them all one by one)

Everything is up-to-date.

Hopefully there is a simple solution.

V-Collection 8.
Mac Big Sur 11.3

[Koshdukai]

Have you tried re-installing Spark? I think that's when it asks the path to put the Spark Library, at least on Windows it does.