Yeelight Crystal Pendant, RGB flashing/strobing at full brightness

Whenever the brightness of the downward pointing light is increased to ~100% brightness, the RGB lights on top starts flashing/strobing, I guess about 5-10hz. this happens whether i use the app or the smart dimmer to increase the brightness. and this happens with old and new firmware. (1.3.2_0032 and 2.0.6_0049), this also happens exactly the same with a replacement i got. So, is this just me? did i get two lights from a bad batch? or is this some weird way a “feature”?