In Studio editor, MultiTerm doesn't show singular term if plural form is found

Example:
In my Termbase, the plural term "valeurs" has 2 entries, and its singular form "valeur" has 10 entries.
In Trados Studio editor, my source text contains the plural form "valeurs".

The term base recognition window will only display the 2 entries for "valeurs", but ignores the 10 singular occurrences.

However, if I delete both occurrences of "valeurs" from my termbase, the window will then show me the 10 singular entries.

I really need to see both the singular and plural entries of each term, or at least have the option to do so.

(By the way, I've ticked "Allow overlapping items")

Any solutions or fixes would be much appreciated.

Regards,

Sam