keyout doesn't carry over correctly when using another computer

we have this keyed out footage which is very cleanly done, however, when opening the same file from another computer, it seemed to have lost the work done on the first computer... all the values in the effects window are still there but it's like the color shifted and so we can again see the chroma color

when opening it on the first computer, it seems to be working just fine... checking other keyouts however, it seems to be working on both computers without a problem

i've checked the advance settings interpretation of red footage to be sure it has the same values, i've deleted any rmd file associated with the red footage... but the problem still persists...

what should be the workflow for this? am i missing a step to ensure this doesn't happen

we're using primatte, mac osx, after effects cs5, and red footage

i hope somebody out there can help, thanks :D