Chaos Corona Forum

Chaos Corona for 3ds Max => [Max] General Discussion => Topic started by: Waseem Dabbas on 2025-08-21, 02:03:38

Title: 3ds Max Render Stuck: CPU Goes to Idle Process Instead of Rendering
Post by: Waseem Dabbas on 2025-08-21, 02:03:38

Hello everyone,

I'm facing a frustrating and recurring issue with Corona Renderer in 3ds Max. As you can see in the attached image, my render is not starting. I've waited for over 8 minutes, and the renderering passes did not started yet.

When I check the Task Manager, I see that the System Idle Process is using most of the CPU, while the Corona render process is consuming very little. My RAM usage is also low, I have 128 gb, and only using 65 gb .

This problem sometimes goes away if I restart the windows, but it quickly returns, which is making my workflow very difficult.
What could be causing this, and how can I fix it permanently? Any help or advice would be greatly appreciated.

Thanks!