Cannot Ram Preview For More than 100 Frames

every often, cannot ram preivew more 100 frames.

 

i have powerful computer, loaded tons of ram , processor speed, several ssd drives configured according new cs6 ways of doing it--ssd disk cache, etc.

 

it's dual x5680 system overclocked 4.4ghz 48 gigs of fast ram. stable.

 

when ram preview acts if i'm running out of ram or disk cache, neither of case.

what's going on?  ram preview can get. project nothing special.  curves, light, cam, shadow... that's it.

 

 

well, have found culprit. didn't realize had magic bullet misfire splotches plugin on precomp deep inside.

 

i disabled plugin , ram previews normal.

 

however, still doesn't provide solution since need plugin on , dont' want forget final render.

 

any suggestions besides pre-render out problem areas?

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