I have and most other clients list the relay list correctly but indeed on Primal web it shows an empty relay list. 

Though on https://nosta.me/npub1rqlwyvfshkj2778cc0lv46geppfhgxc73uqfcc0zpz3gy5d07uasj6c9tx you  can see it displays the list properly.

On https://metadata-contacts-relays.pages.dev/ as well. 

 Actually Primal web also shows the relays, it's probably an app issue then. https://m.primal.net/HQGd.png