Merge Academy Not Providing New Customers

Thanks for your response...but I know all too well how customer requests can slow down the gameplay.  Let's talk instead about QUALITY of gameplay.  It is so tedious when multiple customers require the same items from the same generator stream.  For weeks I was pursuing various vials at higher levels so the only spawning I was doing was from the same cauldron generators, and then waiting until they rest and restore.  This doesn't help in the pursuit of challenges that require filling multiple customer requests.  There is no management of "other higher-level items" once the storage closet is full and the grid is packed.  Other players have also mentioned that it is frustrating that we cannot eliminate generators if we have multiples of some of them.  If the "reward" for completing levels in the Chapters is more parts of generators, this game will become close to impossible.