Hi...my 2021 M3 SR+ has developed a strange issue where the boot occasionally beeps twice when opening. It happens when the tailgate has completed lifting. There are no obstructions or dirt on the struts. I have tried resetting the 'max height' by holding down the button, and also gently opened and closed the boot lid manually, but all to no avail. Tesla has replaced the powered strut once and tweaked the alignment of the tailgate itself which fixed the problem for a couple of weeks, but the problem has now retuned. I have a service appointment booked, but wondered if there were any thoughts on this problem? Thank you!