Light flicker causing horizontal black bars.

I am currently working on a game that has a flashlight as a main component. The flashlight is set up in such a way that it flickers when certain conditions are met. The flickering itself works well, but during the flickering I get horizontal black lines across the screen that start from the bottom and work their way up the entirety of the screen. I have looked for a solution to this problem and I found a similar issue here, but the vsync fix (or any vsync option for that matter) does not fix the issue for me. I have tried several scripts changing everything from the light's intensity, color, and simply shutting the light on/off, with all causing the same black line effect. I am working in web player, but have also attempted this on other platforms, both within the Unity editor and built out. I am really stumped as to what can be done, but it just flat out looks bad the way it is now and losing this effect would really hurt. Any suggestions would be greatly appreciated.