The most likely cause is the rotating mechanism in the icemaker….its also the simplest to replace. Just determine model number and its an easy order…..check if yours is narrow one (5 cube) or full width (8cube). Then follow these instructions
https://www.youtube.com/watch?v=2DdUW9IlQcA
when your part arrives…..the rotating mechanism is plastic and can break easily if for some reason there is an obstruction in the emptying into ice reservoir process.