Yesterday's "update" has fixed the calendar door bug, but created major problems for the quest log.
Now every time you complete a quest, it goes "gold" then vanishes before you can do the 2nd stage and click the green tick.
Before, this was intermittent and the "new quest" or "quest completed" popup would appear after a while and clicking that returned the quest screen.
But now it takes a refresh to renew the quest log (sometimes 2) and happens on every quest. Took hours just trying to complete quests, and log is still bouncing back to the top entry in the list every time you try and do something with a quest further down the list.