The bug of finishing the final Halloween event quest

I know it is not a PTR bug. I send it here, because some Game Masters have seen this area.

I already post lots bug reports, but the bug still there. As the Halloween special event almost in the end, I just hope I can finish the final quest to get my mount.

The bug is each event quest should be on the top of the quests’ bar which in the bottom right, when you select it. And my final quest have already been choosen, can’t be changed. However, none shows on the quest bar.

When I win lots games in quick match and unranked draft, I get 0 credit. So it means I did not select the final quest. However I can’t change or re-select the mount quest.

So I get a bug, the game considers this quest both selected and non-selected.

Please help to fix it, thanks.

Blizzard checks every post in bug report, PTR and otherwise region