Hi Paul,
I have been using Rhino 6 SR20 with Octane 4.0.5 without problem. Last week I bought an Enterprise license and started using OctaneRender for Rhino6 2019.1.4.115. It worked for a few hours then start crashing. And once it started crashing, no matter what you do even without opening a file it will crash within 10 seconds.
Then I updated the driver to the latest DCH 441 and it still crashes. Reinstalled Rhino and Octane 2019.1.4.115 from scratch and Rhino still crashes within 20 seconds right after opening.
Then I deleted everything and installed 2919.1.4.114 and again, it worked for a few hours then stop working the other day, keep crashing. I tried deleting the Octane plugin and Rhino will not crash.
By the way it works on C4D R20 with no problem.
This is on a MSI laptop with RTX2070 maxq, Windows 10.
Attached is the Rhino crash file. Thanks.