Hello, I have installed two Meastro LED+ dimmer switches on two separate light sources. Both of these switches are on the same circuit and share a neutral connection. They're both in the kitchen. Both light fixtures have built in LED sources and are dimmable. Sometimes if both fixtures are dimmed, one of them flickers to the brightest setting very briefly (looks like a camera flash). This only happens to one of the fixtures, never the other. Is there anything I can install in-line on the neutral wire to prevent what appears to be power "feed back"?