I have two of them and have hatched A LOT with mine never had any problems ....... be patient and keep tring .... maybe something little you are doing that even if you go out and buy one for big $$$$$ the end result may be the same. so I think just take a deep breath and give it another chance before you go in debt with a different one. I know a lot of people that uses LITTLE GIANTS . I also have a little trouble with the cups (same type rotator as you ) They make a newer different one now. but just press with your index finger right in the center circle and listen for a pop and you have it in. If you are not going to change cup sizes ( for different eggs) I think glue may work!! Hope something may be useful