Seasonal appear as non seasonal

There’s a serious party bug where seasonal players appear as non seasonal by the system, preventing them from accepting invites and joining parties, or starting games with ones due to the game thinking they are non-seasonal. This happened to me many times now

That’s not a PTR issue.
The bug’s been on-going for almost six weeks now on live…

The game simply thinks people are non-seasonal for others.
Some guy was using general chat through his only existing, seasonal character, and still was not marked as seasonal for me

Might not be a PTR issue, but it’s a pretty annoying bug