Lights don’t fully turn off

[trustmeimalawyer]

Hi. About 2-3 weeks ago my 2 x Xr30 gen 3s started to not fully turn off at the end of the light cycle. It usually happens 3-4 times a week. My lights are set to turn off at 11pm but the one of the lights seem to get stuck on around the 10:30 moonlight phase. I wake up to see one of the lights still on. Thoughts?