Add a sphere
draw a render region around it
enable the region in the render settings
click the "get last region from LV" button
Render to picture viewer
The rendered image does not match the region which was drawn.
In case its relevant, I am using 150% windows UI scaling on a 4k monitor
file attached
win 11
c4d 2024.4.0
octane 2023.1.2 R6
150% windows scaling