Hue bulb randomly going purple

I’ve had 2 bulbs for a few years and recently (2 months or so) one of them randomly decides to change to purple for hours at a time. I don’t change anything and even the app itself shows the bulb as the correct color. Nothing I do on the app can correct it and all I can do is wait (usually 8hrs-a full day) for it to change back. I don’t have any 3rd party apps installed. Anyone know what could cause this or how to fix it?