Can't get a new class quest?

Hello~

I've reached level 20, I'm already doing dungeons in the main story and I've done all my class quests (Marauder) - however, no NPC for other classes have any Quest for me, what's going on?

Have you gone directly to the guild leaders? If so, look around the room of the guild where you want to join and find the "Guild Receptionist" NPC, usually somewhere around the entrance of the classes guild, it should have a quest symbol above its head (this quest symbol wont appear on the map, it really is only visible if you look at the NPC). Talk to it twice and you should have the quest for the class you want to change into. If you don't see this quest on the NPC, chances are you need to unlock changing into other classes by either progressing in the main story or your main classes questline, I however do not remember if neither of these two were required to actually change into another class.

If you are trying to unlock classes, I believe the quests start at the people at the front desk, not at the guildmasters.

If the unlocks still aren't showing up, then you have not completed your class quests and need to return to your guild.

If you go to other guilds after level 10 hoping to unlock other classes but don't see any quests available, it can only be because you haven't done the MRD class quests offered every 5 levels at the MRDs guild. To be more specific, you must complete the level 10 MRD class quest. This has nothing to do with story progress or running dungeons.

I know you say you've done the MRD quests, but make sure you're not confusing quests offered while playing as MRD with MRD class quests. Check back at the MRDs guild and see if any quests are available.

Well the issue is fixed. I wasn't at the right NPC and didn't have any quest icon on the minimap to guide me to the correct place~ but now I found the NPC. Thanks.
Wish the map and minimap were a bit more helpful....