Passing beam Nissan Micra

Hi, I have a problem that I can’t explain to myself. Maybe one of you can help me. I drive a Nissan Micra, in which for some time right dipped light does not work. I measured the voltage at the plugs of the dipped light and come at the defective side only to 8 to 10 volts, instead of 12 volts. I also checked all fuses and could not detect a defective fuse. When using my driving beam only one mode works. If I use d When I press the main beam through the locking function, the right light does not work either. I also measured the voltage at the front fuse box in the engine compartment and come to 12 volts on both fuses, for the right and left dipped light. The curious thing is that the right lamp will start at some point during the ride. Sometimes this happens very quickly and sometimes not at all… Ha Does anyone have an idea where the problem may lie? Thank you very much