I just checked this

If I deselect all options before exporting I can load the object fine in Octane stand alone. I do get an error if I keep the default options for export

I used stand alone 2.06 to test this with PP2014 gamedev.

I normally use the plugin, so importing objs from Octane standalone has been a long time since I did that and I do not remember which options I used at that time