Colorspace clipping using add blend modes in OCIO v25.2.2

Update, This is definitely partly a windows issue now. I work between 3 different machines all with NVIDIA cards (1x 3090 Ti, & 2x 4090s) I’d been using After Effects 25.1.0 strictly for compositing up until August 2026.

However, there must have been some kind of update or change to either Adobe or Windows, because now the entirety of After Effects 25.x.x immediately crashes upon opening. Rendering it completely useless. I’ve verified on all 3 machines, removed plugins and wiped one machine to check. 

None of this fixed the problem, so I’m forced to use AE 26.x.x and above which is fine until we get back onto the compositing question. Disabling GPU acceleration is an unfortunate handy cap for 32bit compositing, so I’m gonna have to switch to either Maxon Autograph or Da Vinci Resolve to composite for the time being.

At the very least disabling the GPU acceleration means that I don’t lose 3 years worth of composited renders. Hopefully this does get sorted at some point.

For those that are still having this issue, my fix is to DISABLE Mercury GPU Acceleration (CUDA) in the Project Settings under Video Rendering and Effects and change it to Mercury Software Only. I have found that ANY blur will cause this if you are using a OCIO ACES (I’m using ACES 1.3 Studio.). This has been a constant irritation for the past couple of versions, but an easy fix. 

This is still a bug, is there no fix?

This is still a bug!! please fix it! 

Still nothing? Are we sure Adobe support is even reading this forum?

THIS IS STILL A BUG

THIS IS STILL BROKEN

 

Desperately waiting for a fix asap. It's impossible to properly comp any 3D renders with this bug

STILL A BUG! 

Come on adobe… this has been in for over a year now? is anyone reading these message boards? 

for anyone who needs a work around. Turn off hardware acceleration.. or if possible just make everything a 3D layer using the old 3D that still lets you add effects. 

Total rubbish from adobe again 

just ran into this issue as well. It looks like it shows up when using any blur, and in my case, AE’s built in Motion Blur. Not an effect, but the layer switch for motion blur. Confirming that setting the render method to software only in the project settings does indeed fix the issue until Adobe and Nvidia fix whatever is causing this.