These days I am doing a bit of testing with Octane and Blender. I use the latest versions of the Prime tier from here https://render.otoy.com/shop/prime.php, with latest Nvidia Driver.
On many occasions, doing absolutely nothing abnormal, for example today simply resizing the viewport, or yesterday just clicking on the area where the nodes were, the main viewport suddenly turns grey. Even closing and reopening everything, or restarting the render does not change anything. Yesterday, for example, I solved it by cutting and pasting again the nodes I had made, and everything suddenly became normal again. I attach a screenshot.
How can I avoid this? Thank you