"null" value displaying in classes' cards

[Zeid]

Hello,

I need your help to know why do classes' cards display null value in the new learning experience library ?
How could I hide it ?

Thank you in advance !

[guidoklinger]

If you have in the item at library no price. Null is displayed in the card.

[Zeid]

I tested it

[Zeid]

Thank you for your reply.
I tested this and it's not the case. Have a look at Padraig answer.