RGB color corrector mask makes image shift Pr Pro 9.0.2

hello folks: i've applied rgb color corrector on clip , when try use mask, whole image shifts bottom right corner of frame. no other effects applied clip.

 

i've done before, updated latest version (9.0.2)

 

so far, mask works on other color correction effects. ideas?

 

thanks,

 

tolbert

 

mac pro (mid 2010)

yosemite version 10.10.5 (14f27)

2 x 2.93 ghz 6-core intel xeon

32 gb 1333 mhz ddr3 ecc

nvidia quadro 4000 2048 mb

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