GE Dimmers "pulsing" with halogen lights

So I have two GE 1000W wave dimmers controlling some halogen bulbs in a large room. There is a notable “pulse” when the light will rapidly reduce in intensity and then go back to full strength. The dimmers are connected to smart things, no automation in progress. They replace two other dimmers that were not high power enough to handle the bulbs that were in the lights. Anyone have advice as to how to trouble shoot ?

The first thing I would look at is to verify if the bulbs are dimmable rated.