Help! Concertina roof cover totally stuck!

[Not-tonyadventures]

Mine stuck open when I got it because the unit had come off the rail and slid under. Lift the mattress up and have a fettle.

This was the issue. Easy fix. Thank you. All rubbing smoothly and the leading section just seems to link with the next one without any adhesive. Might add some double sided tape to help though. Thanks again.