For example, since they fixed the "additional instances could not be launched" issue, you can no longer share the daily heroic quest with your group while inside the zone.
We only get that issue on the Oceanic Realms because the world servers are set to AEST and the instance servers are set to PST so, for the majority of the day due to a 15 odd hour time difference, the daily quest outside the instance is actually different from the one inside the instance. This is due to the fact that you cannot share the daily with someone else if it's not the "current" daily according to that instance. People normally run out of the instance, share the quest, then run back in if someone forgot to pick it up.