This is important. If you watch all 10 ads at once then the event ads will show not available. If your ad reset is not at a good time for the promo ads, just leave one to watch. You can watch all the promo ads with only this one ad available. Once finished, you can watch the final ad. I do this as well for the BoB pack.Do you have your ads for stamina resetting every 24 hours? If so, before going for stamina, watch the ads for campaigns first.