So I am running After Effects CC 15.1.2 on a MacPro 5,1 with 32 GB of RAM NVIDIA GeForce GTX 970 with 4GB of VRAM on MacOS High Sierra 10.13.4. I have 6GB reserved for other applications, so am running with 26GB of RAM.

I am running UHD 29.97 P ProRES HQ footage, and it mostly works fine while I am running, but I do get crashes sometimes, and the problem is either with a crash or with saving and closing and re-opening the project. When I re-open the project I get the error After Effects error: Unable to allocate enough memory to render the current frame.

This happens as soon as the project has re-opened, and happens immediately as soon as the project opens, and it happening every time with different projects and different footage (though all UHD 29.97 ProRES HQ.

I have found 2 workarounds that let me keep working, but are both a major pain in rear end.

The first workaround is If I open a new project and import the old project things work fine until I close AE or it crashes, then the same problems occurs.

The second is to hold down shift-option-command and delete the preferences when I re-open, but this also trashes my custom workspaces. And it seems Custom Workspaces no longer sync anymore? As if I restore my Preferences from the Sync my workspaces don’t come back (I know these used to sync, why don’t they sync anymore?).

Any solutions would be greatly appreciated as this is really frustrating.