tomofhyrule wrote: »Every trial has a ‘catch-up’ mechanic specifically for cases where someone joins the trial after it’s already started.
If you start the trial normally, you can pick up the quest as normal. But if you join late and don’t get to pick up the quest, then the final boss will drop a special item (it’s different for every trial) that is marked as a quest starter. Just use it in your inventory and it will give you the quest so you can turn it in and get your box as normal.
You can even use it after the trial and then just port to the entry room and turn it in to the questgiver right there. Unlike dungeons, you are able to turn in trial quests at the beginning of a new instance if you forget it in the old one.