Why do my Emissives keep fading?

Hi guys, i have some a blueprint setup for my lights that is connected to my my material instance. I have a multiplier on my emissive value to make it bloom but it seems to be really inconsistent when in game… it tends to fade in and out depending on how far i am to it? is there any way of changing this please?

Thanks

Sounds like the eye adaptation on your camera - check on your post-process volume/player camera and set the Min/Max exposure to 1.0 on both fields. This’ll stop the ‘eye’ automatically adapting the exposure, and should help to reduce the changes in brightness you’re seeing.