Interesting, i’ll have a go over the next couple of days to see if i get similar results, it may be something we need to bug.
As far as i’m aware, if you use native decoding then the upmix to 5.1/7.1 will work well. I will finally be back in the studio soon so will be able to test this better!
I’ll post back here when once i’ve tested to see if we have similar issues.
oh, and i do love Blue Ripple, i used the plugins for several years, there aren’t many that come close