Thank you for information of your version of nVidia Driver, wimvdb.
I roll back to 398.36, and test it.
It is same situation, not stable on my environment.
I fell that this problem has relationship of version of nVidia Driver, but it is not root of trouble.
I meet this trouble, it is Just same timing of new lighting set up of sense.
It is small portion of environment light with 3 Spot light as Main, sub and Back.
This 3 light has link with one Group object, it is always change by camera direction.
This sense has rot of trouble in animation, it has change camera position each flame and change change light group direction.
I use Octane Render Animation rendering with reload all of information on each frame, and I meet this trouble , may be 2-5 frame later. Some time it is make system clash or Poser abnormal end. Specially, change camera X rotate, this trouble must be occur.
Some time, Octane View port is just white or noise on first frame, this mean Octane Render missing rendering all.
Case of this trouble, Windows is quite unstable, if I will try again it, Octane has no response or Windows Clash(50%).
And, if I dose not use animation rendering, it mean that I make situation on Poser, I bring up Octane for Poser, and I push Button of ViewPort, this case is more stable but I meet same trouble some time. This case, I will stop rendering it by manually, and I increase frame no on Poser, I push reload button on Octane for Poser, this is manually control animation rendering.
The Previous version of Octane is more good result than newest version, because newest version can't rendering until complete that is 6400 samples. May be 30% proceeded, I meet this trouble.
I test older lighting setup, it is stable, it is fixed lights.
I feel that octane has some trouble with Lighting setup or under animation control.
This situation of sense is a little of " sexually explicit scenes of characters", therefore I can't upload here directory, I must test minimum configuration with out characters, may be it need 1-2 days. Therefore I will try it by request, if support stuff need this troubled sense, please inform it.
If I dose not use