Had the exact problem, and took me a while to figure out. Couldn't understand why the 'suede' kind bottom black trim was getting wet, especially since I had cleared the sunroof drains 2 years before.
https://www.youtube.com/watch?v=MlaiU2ysB5E
See this other video where I explain why this is a recurrent problem
https://www.youtube.com/watch?v=HHs2w2eKJgE
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