Hi,
I also stumbled upon another issue and that is when i have multiple cameras in different folders but rooted in same partent:
Cameras-> cam1; cam2; cam3
If i place a Postprocess.conf to each of the folders with the adjusted settings for its respective cam(1,2,3) at the same time and i start the batching it will sometimes do as in the picture posted. It will probably take a Postprocess.conf from another cam folder and apply it to the process its batching currently. This goes away if i do them one by one and i have only one Postprocess.conf in the folders while im doing the batching. Scratch that it sometimes just skips tonemaping altogether and i can't find a solution to it. Never was an issue with Corona 7