Talk:Rainbow Dragon/@comment-86.153.34.83-20120207234443/@comment-4775325-20120208000749

Sometimes there's a delay, if it goes on for too long you can quit DragonVale and then reopen it and the incubation timer should be there. On the issue of rare dragons though, they're rare for a reason all I can suggest is that you try the combinations listed on the pages of this wiki without giving up, it may take time but you should get one eventually.