Does the slatted screen slide back and forth well enough when the roof is fully up, and so the slideways are completely unobstructed?
If so, then try this, which avoids risking fighting with it / forcing it when trying to slide it after dropping the roof, and / or risking trapping the roof fabric in the slider channels.
Drop the roof to within about 6” of fully closed, all the while taking the usual care that it folds neatly and isn’t trapped in the scissor frames on the way down, then at that stage finally and neatly fold the ‘tongue’ of that part of the fabric which will sit directly above the sliding panel, and then slide the panel cleanly shut at that point.
Then motor the roof down the last 4-6” and all should be good.
It took me most of the 3 weeks we had one on rental to tumble this trick.
And if you are not convinced, or not confident, then you can always slide the slatted section out again a little bit to check that what’s above it is all neat and tidy with nothing trapped.