CR6 Max printer head error LED status?

Hello everyone,

I just got an CR6 max and i have some issues with printing.

Somehow the previous owner managed to screw up the nozzle threads but i was also experiencing other trouble.

I noticed that when moving the filament tube the blue light insight the printerhead flickered.

I ended up installing a complete new head, but the problem still occurs. (See video attached)
Can someone tell me what kind of status led this is?

Is it normal or do i need to search for an other error?!

Evening. So that light is for the sensor that is used for the bed leveling. If its triggered when touching the filament. Im going to say that something is loose.

Did it do this before you changed the head?