Chaos Corona Forum

Chaos Corona for Cinema 4D => [C4D] Bug Reporting => Topic started by: pictura on 2025-09-18, 13:39:53

Title: Stability Issues with Corona 13 and Corona Hotfix 1
Post by: pictura on 2025-09-18, 13:39:53
Hello,

I am experiencing stability issues with Corona 13 and Corona 13 Hotfix 1.

Since installing Corona 13, I have noticed that while rendering works fine most of the time, Corona occasionally freezes when a pop-up window appears — typically during denoising or when saving an image.

I initially suspected that the issue might be caused by too many background programs or outdated GPU drivers. To address this, I uninstalled unnecessary background applications and updated my GPU drivers (NVIDIA GeForce RTX 3060 Ti). Unfortunately, the problem persists.

I have never experienced this issue with previous versions of Corona.

The problem is urgent because even though renderer is finishing denoising I can't save it. Only way is killing all the process and restarting Cinema. All rendering time is wasted and no certainty next time it let me save.

My setup:

Cinema 4D R21

Windows 11

AMD Ryzen Threadripper 3970X

Could you please advise on how to resolve this issue?

Thank you in advance for your help.

Best regards,