There was a problem sending the party invite. (Code 316751)

What is causing this and/or when will it be fixed. Been an issue since launch

your on different world tiers then who your inviting

you can get it to work with a relog. or just match world tiers

Same world tiers, I have a boss summoned and can’t relog

This problem exists since Day 1 and go on. No fix at all.