Hi ordinary-week,
Double-click on the material Manager> material icon should always open the "Shader-Editor.
There are two types available: one you get while creating a new material based on the Preferences> Renderer> Redshift> Global> Node Materials for Preset.
Double-click on the two materials in the scene to see the difference.
CV4_2025_drs_24_RSvm_01.c4d
Render to see the effect.
The nodes that look like XPresso nodes are older and differ a little bit, There might be a time when they get retired; the other ones are newer and miss a few little options.
If you like to attach a screenshot, please max height 500 pixels, but if possible, save your time and share the project file; images often do not tell a lot. Project files often do better.
Sorry for the long instructions below:
If the file (c4d no zip) is below 1MB, then it can be attached directly here. Always reduce files to the problem, no 3rd party plug ins.
(If larger, I open only Dropbox, Google, Wetransfer, Apple, or Adobe cloud files, for security reasons, no zip, no Tiny URL, and no hidden HTML links, etc. Images please via the same services.)
Happy New Year