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I switched to R21 last week and i've been noticing some weird stuff with this version of Octane. (I apologize if this is a recurrent topic or something already talked about in the forum. I did a couple of searches and nothing came up related to this)

*Material previews don't update on the Material Manager unless they are duplicated or C4D restarted.
*After un-soloing a texture the LV doesn't update unless I move forward or back a frame in the timeline, restart the scene or switch between kernels.
*Adding Octane Tags with subD doesn't update on the fly either, have to resend the scene.
*LV shows "StrNotFound"pm the top menu (image attached)
*When sending the scene I don't get any feedback on what's being loaded like before, nothing on LV or at the bottom of the main C4D window.

I know most of the effort is being put on Octane 2019, but hopefully we still get support for V4 users.

I'm on V4.05 R5
Nvidia studio drivers 431.70
C4D R21
Windows 10 (up to date)

Very thankful for all the work as always to the devs of the plugin.

I'll push a build(4.05-R6) to solve material preview issue. I did it by a trick comes from Maxon team.

I can't see issues as you see. Just maybe for solo mode issue.

Thanks a lot Aoktar.

These past couple of days Octane has been more stable, but the Material update is definitely not happening.

The LV window showing "StrNotFound" seems to be related to Maxon as it is showing up on the content browser as well so not to worry about that.

Better to make a clean install. Be sure you deleted "oct.dat" in prefs folder.

Hey Aoktar,

So, I've downloaded V4.05 - R6 and materials are updating in the material manager so thanks a lot for that!

Unfortunately I still do not get any feedback as the scene is being loaded into Octane. Not on LV or on C4D main screen bottom left. Currently i'm working on a big scene and I don't get anything for about 1 minute...sometimes I am almost quitting C4D because I don't know if it crashed or it is loading geometry and textures.

Also, I'm having to manually move the camera around or move one frame forward after un-soloing a texture for the LV to update and go back to the render kernel.

Hopefully these are things we V4 users can see fixed some time soon.

Always thankful for all your work.

Probably you're hitting to limits of your system. Try to delete or hide some geometry and materials. Also keep Console window open to check any error messages.

I'm sorry but I don't think that's the issue. I'm defintely not hitting the limits of my system and there's no errors.

I just don't get feedback on LV or C4D while loading the scene to LV, and also it gets stuck on solo mode and all of this regardless of what's being loaded into the scene.

I think you have a problem with the GRAPHIC DRIVER setup. Activate all log outputs and share "c4doctanelog.txt" if you can't share a video capture to show your issues.

Just had a crash while dragging a gradient slider. Here's the report Also I recorded my screen to showcase the issues.

No LV or C4D feedback while loading
https://www.dropbox.com/s/5klq86f5eb5qq ... s.mp4?dl=0

Notice how i'm loading two completely different scenes in terms of complexity and I still don't get any feedback, even though the tire scene loads super fast, it only shows feedback after loading the scene.

Issue with solo node
https://www.dropbox.com/s/ic7s8yy5ykf1n ... e.mp4?dl=0

Also, I just realized this and it just started happening. Notice how i'm not able to right click on a material and select it from the LV. This was working a couple hours ago so i'm not sure if i just need to restart, but thought i'd mention it.

For reference:
I'm on V4.05 R5
Nvidia studio drivers 431.70
C4D R21
Windows 10 (up to date)


If you can recommend a more stable Nvidia driver (if you think that would be the issue or part of it) let me know.

The driver you're using that's quite stable on me with Win10/R21/2x2080. I don't have much advice for your feedback problem in LV. It seems like graphical refresh issue somehow and seems like system depended. It doesn't happen on my machines.

I see you have a lot of software in background. Try it without any others running. Also you may try a clean install for C4D and plugin.