Why aren't the bombs dropping on level 7078?

Hi there. I'm not sure what you mean, they drop alright when I play it. Is your level 7078 different? The bombs drop normally from the dispensers. The colour bombs drop but you have to wait for them to come down on the conveyor belt. Hit them into candies the same colour as candies next to the icing. Do not play a colour bomb or lucky candy booster! They make the level harder if not impossible to pass!