Easter quest: the last island. Recruiting bowmen not registered; no quest progress

Greetings everyone,

For the easter quest 'the last island' I am required to recruit 10 recruits and 10 bowmen. The 10 recruits have been registered, although the quest log still says 0/10 are recruited the big green V next to the objective tells me it's completed. The bowmen are a real problem though; I've recruited at least 10 of em, but it still says 0/10 recruited! :( I recruit a couple of bowmen and those are registered, but when I get back ingame again later on it's back on 0/10.

Any word of advice on possible causes for this problem? Any other folks out there with the same problem. Hope hearing from you!

did you asign em to a general?
if so unassign em.

if not retrain 10

I'm gonna try training 10 in a row now. Saved up bows :) Hope it will work!