Niagara visual artefact

Hello. I’m using UE4 4.26.0 and I’m having an issue related to the light renderer in my Niagara emitter. Whenever I am within the radius of my particle effect I get a visual glitch shown in the uploaded images.
The glitch is apparent regardless of whether I’m running my level or just being in the editor. It’s almost as though when I enter the radius of the light renderer, it terminates all other lights and only uses its own. Unsure if its something that needs configuring or if its a bug. Anybody know where I’m going wrong? Appreciate any help.