I've been having an issue with the Octane Blender plugin for several months. It was working just fine, then it started freezing when I enter the Rendered mode in the viewport.
It displays the message "Waiting for image..." and it just hangs there, nothing happening. If I leave it for 5 minutes, it might move on to "Render-target evaluation on server" and update the image, but it takes minutes for each minor refresh and it's completely unusable.
This issue happens no matter what the scene is. I can just have a cube and go to the render viewport and it will freeze. Or I could have a scene full of geometry, it really doesn't make a difference.
It seems like it's working, just incredibly slowly and each step taking far longer than it should.
If I open the Octane Viewport from the menu, after waiting for 10 minutes or so for a cube to load in the Blender viewport, the Octane viewport will display the scene correctly and update as normal. The Blender viewport will still be frozen.
If I try to do an F12 render - it will be the same. Waiting for image will display and each next step will take a very, very long time.
I've tried updating to the past few versions of the plugin - it happened with all of them. Currently running the latest version, latest Prime as well - no change. Latest NVIDIA drivers, just did a clean install of Windows. I completely replaced my PC recently, this was happening on the old machine, it's happening on the new one as well.
I've done a factory reset for Blender Octane and only added the Octane plugin, still the same issue. No keys / settings modified.
Current machine is 3950x, 64gb ram, rtx3090, windows 10
Since the hardware is completely different, I'm guessing this might be caused by some sort of setting / script that's carried over from my previous Blender settings.
I do use different versions of Blender, running different plugins and some custom hotkeys, but I've done no scripting or anything like that, just very basic customization.
I'm thinking something that's already installed must be interfering with the Octane plugin, but I have no idea what it could be.
This is from the log - it seems to repeat over and over.
Tried to access pin via an invalid ID P_UNKNOWN (0)
Tried to access null node pin
Can't read bool from static pin 'unknown' (P_UNKNOWN, type PT_UNKNOWN) of node '' (NT_UNKNOWN, 00007FFD9895D200)
Tried to access pin via an invalid ID P_AI_LIGHT_STRENGTH (385)
Tried to access null node pin
Can't read float from static pin 'unknown' (P_UNKNOWN, type PT_UNKNOWN) of node '' (NT_UNKNOWN, 00007FFD9895D200)
Tried to access pin via an invalid ID P_AI_LIGHT_STRENGTH (385)
Tried to access null node pin
Can't write float to static pin 'unknown' (P_UNKNOWN, type PT_UNKNOWN) of node '' (NT_UNKNOWN, 00007FFD9895D200)
Tried to access pin via an invalid ID P_UNKNOWN (0)
Tried to access null node pin
Any help would be very much appreciated, since the plugin is completely unusable in this state and I do want to try the plugin on the new PC
Thank you so much for your help!