Sunroof is loose

Hello,
I don't seem to find a solution in the manual or the forums....

Mx sunroof is loose when it's fully closed and down... I can push it up with my fingers... Tilt and open works normal...it seems like the back is not locking in place... Any suggestions?

Take headlining out of car, probably loose nuts where it fixes to the roof, if not maybe sliding bar is broke?

If it's tilted, it's solid... Only when it's closed it moves:/ have no idea where I could search for loose ends... Taking the headliner out seems like a weekend project...any suggestions what I should look after concerning the sunroof when I convince myself on taking the liner out?

Maybe the motor is not calibrated right? Do I have to take out the headliner to calibrate it?

Thanks for the help

Honestly not a clue about calibrating, but headliner is piss easy job

Pull off A pillar trims, pop off an lift towards you
Unscrew seatbelt at the top drivers and passenger, unscrew 2 bolts from rear quarter glass at the rear, again the large trim pulls off, rear doorcards might need to pop off aswell
Then there a panel above parcel shelf, there's 2 screws hidden behind plastic blanks, unscrew and trim pops off
Then you've got the 3 handles holding the roof lining on, unscrew them off
And then pull the Trim off around the sunroof which olds headlining to sunroof frame
Oh and there's 2 screws in the cabin light, flick the lense off with a a screwdriver

Literally all of the above is 30 minutes or less

Oh forgot about sun visors and rear mirror unscrew them un screw them aswell

Oh okay I looked around so if I move it back a hair it's solid if I tilt it just a little bit it's solid... Maybe I try to film it I don't know... The mechanism is not locking when I close it. The arm itself can move...