Aha I think I know your issue. The roof has three positions, closed, released and open I think describe them. When getting the roof down, I have found it best to get it all the way to closed rather than “released” before putting the roof canvas away, otherwise it’s possible to bunch up the canvas and prevent/inhibit the roof from closing. If you keep the canvas clear then ”roll it away” before latching, it is much easier, but still a faff compared to electric. California Chris has a video showing manual roof on his coast review, quick YouTube search will find it and makes sense of my descriptions.
Every trip I curse the manual roof, but equally seeing how the 6.1 cost savings have affected reliability, I do still think I have the right option with manual roof, but do miss the ease of the electric roof. Once the roof has gone up and down a couple of times I am happy with the manual one. I am yet to test a roof box and suspect I may miss the electric roof in that scenario as reports on roof box success are varied at best.
Unfortunately like all manufacturers on model refresh, it’s about sourcing cheaper components rather than improvements, so increased reports of roof problems, control panel software, sticking door latches in winter etc are all symptomatic Of a mid life refresh.