PNG 48 trillion colors corrupted on saving Corona render passes.

[mike_kennedy]

I am saving out 48 trillion color PNG's in the render passes, using only Corona render passes.
I am getting two oddities with this file.
The PNG's are saving corrupt so I have to save manual from the Corona Frame buffer, and the Z Depth saves completely incorrectly.
I have attached some images here to look at.

The broken PNG's are all 26K, so guessing they are just not saving anything.

[jkacza]

Same here. Do you solve this issue? Thanks =)

[TomG]

Do note that this original post is from 2014......