i'm having this issue in a long time , i don't have a good machine so for preview i do some low res sim flip (not too low )for preview to my clients, when it get approved i start a high res sim and the result is diffirente or even have nothing to do with the low res .
i'v made a test here with mpm and still the same problem .

is there a way/method to fix it? or there is a minimum res to start with that it doenst' change too much when swiching to high res?
thank you .