In Octane X PR7 the Maya plugin is exporting the frame range incorrectly. For example, setting frames 120-150 in render globals will result in a .orbx with a frame range of 0-150, and the scene data shifted to start at 0 and end at 30.
Maya 2020.3
Octane X PR7
MacOS 11.2.2
5700XT
128GB RAM