Honor 5X : Contacts - Cannot import contacts from SIM

Device : Honor 5X System : 0.1-201809121404

I'm unable to import my contacts from SIM card into contact App. The displayed list is empty.

Sim Card is in slot n°2 (micro-Sim)

I confirm that these contacts are there for sure as I've swiped the card in another Android phone where I can retrieve them.

Thank you for your help