This is how my project renders in octane 2020.2.1
This is what it looks like in 2020.2.4
The transform node is set to do a 90 degree rotation on the texture so that the lines run vertically. Since updating to 2020.2.4 the lines now run horizontally. I have also noticed this on other projects where the 2d transform node ignores the rotation data. Note that the size transform is being correctly applied, only the rotation is lost.
Project attached
geforce 3090
win 10
c4d r20.059