Privacy & Security > Local Network and make sure Max has this option enabled. Let me know what happens.
This is the first time I’m trying out the export to H9000, and the privacy & security setting was the problem. It’s working now – Many Thanks!
Max 9 does not seem to let me downgrade to RNBO v1.2.7-eventide.0 – after the downgrade is performed, package manager says that RNBO 1.3.4 is installed. However, the export of Tom’s mid-side patcher works fine on the H9000. I’ll experiment a bit more with max 9/RNBO 1.3.4 and see what happens.
Max 8.6.5 does allow the downgrade to RNBO v1.2.7-eventide.0 and the export was also successful.
