After the most recent update (12/8?), Arena is NOT IDENTIFYING BANNED CARDS CORRECTLY, resulting in a disqualification of many of my brawl decks for Historic Brawl play.

It looks like the problem is that any card which has been banned, even in a specific brawl event, is banned in Historic Brawl.

Example: I can't play any brawl deck that includes [Faceless Haven], because it was banned in some event format. When I hover, I see that this card was banned in:
1. Historic Shakeup: Week 2
2. Historic Shakeup: Week 3

About half my brawl decks now have this issue.

PLEASE FIX!

Thanks.