Periods are a side effect of the period placement next to the space bar on my pad and the shorter reach of my thumb.

So the halo never lights when headlights are also on? Or lights for a moment? Which?

Is there common electronics feeding both halo and headlight? If so could this be swapped with other side to see if problem follows? One side works the other doesn't ..... seems one could swap something to find what is the problem is.