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Hi

Have a very simple scene that i was playing with that just stopped rendering.

Getting this in the Octane Log

Started logging on 14.03.20 12:18:52

OctaneRender Studio 2019.1.5 (6000500)

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, 00007FFC3ACBB500)
Tried to access pin via an invalid ID P_UNKNOWN (0)
Tried to access null node pin
Can't write bool to static pin 'unknown' (P_UNKNOWN, type PT_UNKNOWN) of node '' (NT_UNKNOWN, 00007FFC3ACBB500)
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, 00007FFC3ACBB500)
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, 00007FFC3ACBB500)

Posting the log with no scene is not very useful.
Could you post the scene as well please?

Sure, I've left only a plane and a cube in the scene, deleted everything else but it still does not start rendering.

Without the log telling what is wrong it is difficult for me to understand what needs fixing.

Scene Included

acoval wrote:Hi

Have a very simple scene that i was playing with that just stopped rendering.

Getting this in the Octane Log

Started logging on 14.03.20 12:18:52

OctaneRender Studio 2019.1.5 (6000500)

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, 00007FFC3ACBB500)
Tried to access pin via an invalid ID P_UNKNOWN (0)
Tried to access null node pin
Can't write bool to static pin 'unknown' (P_UNKNOWN, type PT_UNKNOWN) of node '' (NT_UNKNOWN, 00007FFC3ACBB500)
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, 00007FFC3ACBB500)
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, 00007FFC3ACBB500)

What is your computer/system specs?

acoval wrote:Sure, I've left only a plane and a cube in the scene, deleted everything else but it still does not start rendering.

Without the log telling what is wrong it is difficult for me to understand what needs fixing.

Scene Included

You have the wrong pass selected (Denoiser Beauty). Since Denoiser is not enable, you should set the preview pass to "Combined".

Thank you , this worked!

Guess this is a bit of an alien concept to me in Blender , when switching off a simple feature like Denoising stops the rendering completely.... very unintuitve.

Any way to reset Octane to default settings?

acoval wrote:Any way to reset Octane to default settings?

Starting a new document should help.