Floodlight Pro Wired - Nighttime Image in Black and White during Rain

So I have recently installed my Ring Wired Pro Floodlight. It has been flawless for the first 6 days. Today we had rain where I am. During the day the camera still worked fine. Tonight, it appears as iff the image comes through in grayscale (expect for my side garage lights, that come through yellowish). If I activate the floodlight, the color re-appears. Any thoughts on why?