I have never experienced them . I have Fantastic Fan brand ceiling fans in my RV. They have IR remotes. I used a MOES Zigbee2mqtt IR blaster set up to replace them. Power on and off work, but no other codes seem to . Every time I learn a code other then onnoff, it is different. Same button, numerous codes, none of which work when spit out of my blaster. Any help would be amazing.