Controller ghost inputs when channelling Cyclone

Symptom - after channeling the Cyclone skill and moving around for any period of time then stopping the channeling and movement. Then when channeling again WITHOUT any movement inputs, the character moves while channeling at a seemingly random speed despite no movement inputs being used on the controller. Happens seemingly intermittently and results in the character moving unpredictably in combat when you want them to stay still while channeling Cyclone.