Transform + Positions and Zoom geometry issue (video attachment)

This is an hard one (i suppose) ... multiple effects are affected by geometry of a resized clip (this crop the image or render the image only in a resized box)

also, using 2 transform in the same clip make some issues like this... (first trasform has keyframes from automask imported)

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i can't use the composite and transform composition because it just crash when the number of keyframes is very high...

BUT if i use CROP SCALE AND TILT effect... this works... ( ??? )