Attached video. Neutral seems like not making proper contact somewhere down below. Im thinking if it needs a cleaning or replacement. Thanks in advance !

 

I am pretty sure that the red lights in the gear selector fascia that indicate which gear you are in are controlled by the BCU. the BCU gets it's signal from the transmission selector switch. The gear selector handle (the handle you grab to change gears) does not control the lights directly. But it does control a cable that alters transmission gear shaft position, and therefore both gear selection and XYZ switch position. So, unless you have a locking tooth damaged or missing in the gear selector handle mechanism, the issue is 'probably' in the XYZ switch.....and that issue is 'probably' due to either a bad neutral position switch or a bad alignment of the XYZ switch....possibly the latter as it goes into/activates neutral with wiggling of the cable....or maybe the cable needs adjusting?

If it is the XYZ switch, be sure to get an alignment tool if you replace it.....

or if you want to check your XYZ alignment, get the tool....looks like this: