Magic Bullet Looks + Fcp : weird color shift in hilights

Hi guys

I'm having a really weird problem with Magic Bullet Looks 2.03.

I get a color shift in the hilights. It's more obvious on some presets but it's always there. And it's constant (it's always at the same spots).

Now after troubleshooting for a while, I realized that the problem seems to be connected to the audio. When the volume on the track gets to a certain level, the hilights go all over the place.

Here's a link to the untreated and treated image.


The footage is shot with a Sony FS-100, log and transfered in fcp 7.03 to ProRes 422, in a Prores Sequence (YUV rendering set to 10bit but still has the same problem in 8bit)

Has anybody seen this problem? Everything was working fine a couple of weeks ago.

Thank you
Olivier