FluidR3Mono alto sax badly out of tune

I think this has come up before, but the alto sax is pretty bad, the pitch varies depending on the lenghth of the note playback. If you click to select a note it plays for a short time and if select with an arrow key it plays for a slightly longer time (why this happens at all is a bit weird too). There is a significant difference in pitch, see the attached file first is clicking a middle c, second selecting with arrow key and third the piano sound middle c for reference. during playback shorter notes are worse (the sample seems to bend a lot from way too flat to ok)