[Davie b]

Originally Posted by Architex_mA8tey

I would also check to see if your parcel shelf is mounted totally correctly in all it's slots and grooves, and check to make sure that the L shaped long curvey retainers underneath are actually glued on ok to the underside of the shelf and doing their job.

When I upgraded mine recently to an alcantara set these pieces were missing and the blind didn't raise until assisted to start raising by someone when the button was pressed, but the shelf had these 2 pieces missing from the underside (I assumed because the alcantara covered version was probably more hand made).
When I carefully removed the same parts from the old shelf and glued them with contact glue onto the new shelf and refitted it I found it all works fine ever since

It's got to be worth a check and a try

thanks mate ,
i'll check it over