Weired: Changed Resolution - Get an uncentered crop

[Refracty]

Changing from larger to smaller height (Resolution) - Getting uncentered crop!

I would like to know why a change in height will lead to an uncentered crop fit.

This is the problem:
Lets say you have a Resolution 2178 px * 1198 px. Then the client says he wants a slightly different resolution - a smaller one: Same width but different height 2178 * 1128.
The first thing you would do is probably just cutting off 35 pixels from top and bottom.
I did a rerender in Octane just to make sure that it fits.
But the result is that Octane cuts off 42 pixels from the top and 28 pixels from the bottom. That is strange.
Of course you could create easily a macro that does the job of nonuniform cutting off the top and bottom but still strange.
Any ideas why?

Cheers
Refracty

[Refracty]

Could anybody confirm this with the given resolution example?

[bepeg4d]

hi, i've tried on both mac and win with different scenes but octane always cut 35 pixels on top and bottom as expected
ciao beppe