Comparator does not give off steady signal when measuring Hoppers (with video)

Comparator does not give off steady signal when measuring items flowing through Hoppers. It seems to turn on and off as each item flows through; this is broken.

This makes cart unloading stations and other dropper-hopper-comparator combo builds basically impossible.

Comparisons:
MCCE Xbox One: https://1drv.ms/v/s!AmZge0rbDU70gdMUfSvtlinLjyFONg
MCPE Win10: https://1drv.ms/v/s!AmZge0rbDU70gdMbFtkNr6RbC29uxA