I didn't use it denoiser，The rendering settings I used can be exported in the previous project.

I tried to clear all the materials, but I can't export them normally.

I use it octane 2020.1.5R4，3090RTX

There is no problem with the preview window, but the rendering and export are stuck all the time

I used hdir environment noet，The ipr result is completely different from the output。