@Peter Allen are you using the newest Nvidia drivers? If so, there are issues with those drivers

@Peter Allen I asked Octane Bot which I'm training on Octane and Blender and one thing I know for sure do not use the latest drivers which I've already mentioned but also these are some other possible issues that may arise I've had in the past other members say that their virus protection software kept causing issues and this is what my bot gave me ✅ QUICK ANSWERIf OctaneServer won’t launch, it’s usually a GPU/driver incompatibility, blocked port (5130), or licensing/network issue—run it from Command Prompt to reveal the exact cause. 🔧 STEP-BY-STEPInstead of individual troubleshooting steps, here’s the situation summarized clearly: When OctaneServer fails to open—even as admin—it typically means it’s exiting immediately due to one of three root causes. The most common is a CUDA/NVIDIA driver mismatch, where the installed Octane version requires a newer driver or unsupported GPU architecture. In these cases, updating to the latest NVIDIA Studio/Game Ready driver (or installing an Octane build compatible with your GPU) resolves it. Another frequent cause is a port conflict, usually involving TCP port 5130. If another service is already using that port, OctaneServer will close instantly without a visible warning. The third common issue is licensing/authentication blockage. Octane must reach OTOY’s servers over HTTPS (port 443) to validate your session. Firewalls, antivirus software, VPNs, or corporate proxies can silently prevent startup. The most reliable way to diagnose which of these applies is to launch OctaneServer from Command Prompt so the console displays the exact error message before it closes. That error text directly tells you whether it’s driver-related, port-related, or authentication-related.

Man I would love to see a picture of your nodes set up for that see if I can mimic that caramel that's looking really good🙏

@Tessa Nesci And that chocolate looks really good too sorry I really like your materials they look really nice in this render

@Peter Allen Yes I've been battling with the fogbox for years now and finally may have broken the code🤣👍

Ya at the moment we don't have access to all the attributes that Cycles has Octane, we do have access to grayscale and color attributes

@Kevin Bichaud Yeah that's what I do if there's something heavily geometry nodes and I can't do it in Octane I'll just switch it up and use cycles and then if it's not needed then I just go back to Octane I think a lot of people get caught up that they have to only use one render engine but I prefer to think of render engines like different pairs of shoes we wear different pairs of shoes for different occasions so using different render engines for different occasion makes sense