Periodic issues initiating viewport rendering with Addon 2026 31.0 Beta
Posted: Sun Dec 21, 2025 6:19 pm
I’m having an issue where Octane Blender Addon frequently fails to start rendering. No error is presented. The viewport simply fails to go into render mode.
The correct Octane Server is active.
Blender Console doesn’t show any specific error that I’m aware of either.
The issue seems to occur after I have used another Octane engine, such as Stand Alone. Not only is Blender Octane Addon 2026 effected, but also the 2025 Custom build.
Restarting Blender and the Octane Server, and even a full computer restart, fails to solve the problem.
The only method I found to get back rendering functionality is to disable and re-enable the Octane Blender Addon.
If necessary, I can post what is shown in Blender Console, but it seems not to directly report any errors.
Also, the issue is happening with brand new files with just the default cube.
The correct Octane Server is active.
Blender Console doesn’t show any specific error that I’m aware of either.
The issue seems to occur after I have used another Octane engine, such as Stand Alone. Not only is Blender Octane Addon 2026 effected, but also the 2025 Custom build.
Restarting Blender and the Octane Server, and even a full computer restart, fails to solve the problem.
The only method I found to get back rendering functionality is to disable and re-enable the Octane Blender Addon.
If necessary, I can post what is shown in Blender Console, but it seems not to directly report any errors.
Also, the issue is happening with brand new files with just the default cube.