Cloudy patch in infrared

Turned off the B&W infrared mode, viewed live, then turned it back on. Now when I view the live feed there’s a cloudy patch in the image (circled in yellow).

Did something break? The cloudy patch does not exist when live viewing in daylight, only infrared.

See here: https://otr.smugmug.com/Facebook-/n-nvHddV/i-mBhfHzb

reflection of your ir light.