Boot leak

With the weather change now found my new freelander boot leaks in the rain. The top of the roof lining by the tailgate is wet so leaking from top rubber.
Anyone else had this and how to fix please.

if you could search all the info is on here, but mainly remove all the plastic trims, unscrew four big screws, peel off metal plate to reveal seal that has destroyed itself, several on here including me have refitted this plate with silicone behind it, refit the plastic trims and run a bead of silicone along the bottom of the channel, if you use black it looks like a factory finish