Ring Indoor Cam, Compact Plug-In HD security camera went to night vision during day - what caused?

We have two Ring Indoor Cam, Compact Plug-In HD security cameras, upstairs and down stairs. Both went to night vision at 10:25am eastern time 3/31/21 in Medina, NY. Upstairs logged it as a motion with the color purple showing up in lower left before going to night vision. Downstairs went into night vision with no motion. After 5 minutes both were back to day color. We think maybe lightning struck near by but weren't home to tell? While looking at both when they were in night vision could see daylight in windows so odd.