Update: Actually, scratch my report above. I think it’s working on our staging server now too.
Just went back to test one more time, and related post order is preserved on our staging server too. Not sure why I saw it move yesterday, since I haven’t changed any of the plugins. But this issue seems to be fixed from what I can see. Thank you!
@Clayton – I don’t think there is a separate dev branch on GitHub. Since I don’t see any dev branches either, I’m betting GitHub is dev for the MB team. I just grabbed master of MB Relationships and installed from that.