3ds max - AI Denoiser failed

Corona Corona for 3ds Max Issues
1

So Max (2018) had a viewport error where it wouldn’t update the viewports, but managed to recover after a files save. However, when rendering with the AI denoiser enabled, this error prompt came up:
Internal error in NVIDIA AI Denoiser. Please report this to Corona support with this info:

Error encountered during denoising.
Unknown error (Details: Function “_rtCommandListExecute” caught exception: Failed to launch DLDenoiser post-processing stage. DLDenoiser run method failed with error -27.)

I guess it’s not safe to use Max after a viewport error (probably a driver crash), reporting in case it can be resolved on your end.

2

And after closing the prompt with the render continuing, another one came up:

Internal error in NVIDIA AI Denoiser. Please report this to Corona support with this info:

Error encountered during denoising.
Unknown error (Details: Function “_rtCommandListExecute” caught exception: Assertion failed: “!m_launching : Memory manager launch is already active”, file: C:\u\workspace\rel5.1-win64-cuda90-VS2015-build-Release\sw\wsapps\raytracing\rtsdk\rel5.1\src\Memory\MemoryManager.cpp, line: 962)

I have to add the AI denoiser works fine otherwise, no errors yet, that’s the first time it happened.

3

Make sure you are using the newest driver and restart your PC.
Is this also happening after 3ds Max restart?

4

Well, it worked after a while even without restarting Max. I guess it’s more a problem of Max/Nvidia than Corona, I reported it because the error prompt stated so. Thanks anyways!

5

Moving to resolved. Please revive if there are still some issues.