Sorry, in fact I did not mention my software.
I am using 3ds max 2016, Corona 1.3 , BB is also Version 2016.
With "A3" I meant "DIN A 3" which is 4960 x 3507 px.
I removed the missing dll and tried to render again, but this did not have any effect.
I will disable the FTH on both machines, but will have to wait until tomorrow to test it.
I just tried another thing: I disabled the render-elements and voilĂ : The slave starts rendering the scene almost instantly.
So the main-problem seems to be connected to the render-elements, but I cannot avoid rendering some of them, as we use them in Post-production.
Of course I know that render-elements do bloat the needed amount of memory quite extensively but there has to be a way to render them in one go or am I mistaken?
Also:
Try also disabaling low thread pyority/ It helps sometiomes when scene is consuming too much ram.
Low thread priority was already disabled, so it also cannot be this :-/