I would always try to get rid of them ASAP, but, often, that's just not possible...
it is just part of life, sometimes things are just not as smooth as we wanted to be. :)
I hope you can solve them soon my friend.
Ah that rising star game, I should get back to play the game again. Myabe this time setting up some goal so I feel motivated to play the game everyday. !LOLZ