Cannot party

Hello,

I’ve confirmed with global chat that players are having issues partying with one another on PlayStation network. I’m on ps5 and friend is on ps4. Multiple people on ps4, all also confirmed the party aspect of the game is not working. Party tab is greyed out. Sending invites can’t be seen. Has anyone figured out a fix? I’ve tried restarting console and game. Seems to be an issue on their end. Other PS games do not have party issue.

Thank you for reading this.