[Frankie Os]

I am having the same issue on 2 different imacs with similar yet different OS:

Imac 27 inch (late 2011)
12 GB on Yosemite
Mostly used for rendering in the background

Imac 27 5k (late 2014)
12 GB on El Capitan
Editing / rendering etc etc

I am mostly working on multi screen audio visual installations. This means that I am working on strange timeline formats such as 3X1920 in width X 1080 in height for composition. usually those files would be split to 3 X 1080 p. This workflow has been working for years and been conducted without any single preview or export problem up until CC 2015.
This was an extremely well maintained system with PPro + Adobe media Encoder and OSX.
Files that i have exported many many times before suddenly pose a huge problem. I get errors about memory on both, PPro and media Encoder:

At a crash the activity monitor shows this:

My current solution is: split the files that I export into chunks, set the preferences of PPro to “optimize for memory” and export from Premiere Pro one by one.

Needless to say that this is killing my workflow. Both computers were blocked for 3 days just finding ANY feasable solution. The source of this problem however remains unclear. No lumetri used here!

HELP!?