White box pattern

Hey Forum.
I have noticed a weird phenomenon lately with the BMCC when shooting under a certain kind of white light (Mainly a powerful stage LED) I get a weird white box pattern, I have attached a photo below.. Anyone have any insight? This was shot prores

I have noticed a weird phenomenon lately with the BMCC when shooting under a certain kind of white light (Mainly a powerful stage LED) I get a weird white box pattern, I have attached a photo below.. Anyone have any insight? This was shot prores
