can't create proxy?

[defaultq1bwyowwyik5]

When trying to create a proxy i get the following error: "the selected preset does not support the audio channel type of the clip"

I have tried changing the proxy presets settings to match the audio settings of the original clip with no success.

Any help would be greatly appreciated, thanks.

Alex

left side: audio channels of original clip | right side: audio channel configuration settings for the proxy