Lens Distortion defeats Opacity

I am running CS6 and am having the most peculiar problem.  I have a GoPro Clip that is cut into a timeline of P2 footage.  I have used the Lens Distortion Filter on the footage (and on a photoshop cutout as well in video track above it). I need to drop the opacity of the clip on Video 1 so that the photoshopped cutout from the video hangs in limbo.  However, when I drop the opacity  on video track 1 it does nothing until I disable the Lens Distortion filter.  Then it works as advertised. Turn the Lens distortion filter back on and the opacity is 100% no matter what I do.
Can anyone confirm this or have a work around?

No, I'm on Windoze. 
My work around was to cut in a section of black video on track 1 and dissolve to black, letting the still image on track 2 float over that.  But that combo, ie. lens distortion and opacity,  appears very buggy.  Now this is one of the few 1920x1080 clips in a mostly 1280x1080 timeline (P2 is not square pixels), so that may be contributing..

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