Hi Renaud,
It's working for me. I attach the BPP process icon, there you have all the settings for your CFA camera.
By the way, you have an additional problem with your master calibration frames. When I ran BPP, it didn't find a dark scaling factor. I found that the dark is vertically mirrored. I don't know why!? I'm not sure if you master bias and flat will be also mirrored... Please check it. It's not a problem with PixInsight, as it does not do this opperation at any moment during the preprocessing. I suspect that it could be a problem with your acquisition software.
Best regards,
Vicent.