Renders to Viewport but not to Picture Viewer

[recording-team]

Wonder why this scene renders to the Viewport but not to the Picture Viewer... any help would be appreciated.
Thanks.
(Pyro/advect render settings still a mystery)
Pyro 57 circlec.c4d

[Dr. Sassi]

Hi recording-team,

Thanks for the file.

I certainly do not have the option to cache 3375 frames just to check it. So, my findings are based on caching it 24 frames (some like the term bake instead), I get the same render result in the RS Rendering window as in the Picture Viewer.

Please contact tech support, as I can't reproduce it here.
https://www.maxon.net/en/support-center

All the best