LZW42 Buzzing Noise

I (more accurately, my wife) got tired of the occasional Hue incompatibility with the Red Series Dimmer so I figured I’d finally switch over to the Illumin bulbs I’ve had sitting around. I pulled the two hue bulb, installed and included two Illumin bulbs (on Hubitat but likely doesn’t matter) then immediately updated the firmware on the bulbs using a z-wave stick on a PC in another room and set up the z-wave association. When I went back into the room with the bulbs to test it, I noticed one of the bulbs is emitting a constant buzzing noise while illuminated.

Anything I can try to improve this or is it a hardware problem? I’ve already tried swapping the bulbs in the sockets and the sound sticks with one bulb.