I now have exporter1024 working fine and
smoothing properly - even using the example SKP you provided - but only after I updated to Octane 10244
However with my earlier Octane version 10243
it didn't smooth at all when used with exporter1024, but it did smooth with the older exporter1022 - which was pretty illogical as there were not any major code changes that I could see that could be affecting this...
I must therefore assume that something has been fixed in Octane itself, as it all works fine again with the latest Octane 10244 and expoter1024.
Can those of you reporting this issue please get the latest Octane version [currently 10244] for you OS and try it with exporter 1024 again - it should
smooth properly - I can't get it to break at all now