Is it because
1) You have an open quest identical to the one the hut would give
2) There is a limit to the amount of unfinished quests you can have total?
3) There is a limit to the amount of unfinished quests that one hero can start total?
4) Some other limit.
And finally, how do you cancel a quest (potion lab on a distant island, or a fetch quest deep inside territory of a neutral faction you don't want to go to war with.)
Thank you.
