[TRAIT] IS 9023 FLASHIE AF?

Background glitch level #9023 is ruled as GOES TO 11, which means "Checkerboard-pattern glitching throughout the loop." However, it looks to have some frames without the checkboard-pattern, which fits the FLASHIE AF definition of "Checkerboard pattern glitching is present in some frames and not in others."

https://opensea.io/assets/0x31385d3520bced94f77aae104b406994d8f2168c/9023

What should the background glitch level be?