Do dungeons reset each time I start the game?

Seems, in the beta, each time I started the game, visited and completed dungeons (green check) were seen as unexplore… Any info ?
Thank you

What you should pay attention to is whether or not there is a small chest icon next to the dungeon, which indicates there is an aspect reward to be obtained for a 1st time completion.

I think this shows up per character per realm, but you only really need to do each dungeon for the aspect ONCE per realm to get the aspects and renown bonuses. You can double up on renown bonuses by clearing all dungeons and side quests on an alt, but that only gets you a little gold and isnt worth it since the main rewards were already claimed.

Just make sure to get all objectives to reach all 5 levels of renown rewards on a single character

There is a small chest icon indeed next to it. But this even if I have done it before. On restart, the green check is gone and replaced by this chest icon ! I am confused…
sorry for my limited English

I think you will see the chest once per dungeon per character, but you only need to do the dungeon once for the aspect to unlock it for the account per realm/season

There’s an orange dot on all the dungeons and cellars to indicate that it’s not been cleared.
Not all dungeons give an aspect reward, so the orange dot is what you want to look for.

If there’s no dot and no chest icon though, that means it’s been cleared.

The green check mark is like d3 bounties. It tells you if you’ve done it on that game. There’s likely going to be some kind of seasonal challenge for “complete all dungeons in 1 hour”.
The green check mark will help with that.

Ok, that make sense now !
Thank you