I reported this issue a while back and was told it was a longstanding issue with UE4 and how it renders lights.
Basically when you’re at a distance or at certain angles, the game will render more lights and turn light sources with length (Neon Bars, Lava Lamp, and Lantern I think) into normal point lights.
I also suggested a while back that they could implement a simpler Neon Bar that doesn’t have a light attached and instead uses Emission and Bloom which would work as a possible workaround.