I get the same results when switching to English (although the comma is turned into a dot) except for when I take a larger area (whole Society Islands for instance), end even stranger, once I have downloaded the larger area grib files, if I try to narrow my search, none of the 3 models work.
I will get back to the 1.1 version, which was doing perfectly in my area as far as I am not concerned by the models that are addes in the 1.2.0.
Thank you anyway.