Hi everyone, I have a problem with the side lights. Last week, while hooking up, I noticed that two position/clearance lights did not come on. In particular, the low white front on the left (in the direction of travel) and the red rear on the right. I was thinking of broken light bulbs, but I'm curious about the fact that they are crossed. What do you think, is it worrying or do I just calmly change the light bulbs? Thank you