Hmmmm, that’s a bit strange, because if i freeze an instrument that doesn’t take its midi from an external midi track, then i CAN solo / mute in the arrange window.
Also, when you’re in the arrange window, even if a track is frozen or not, you still might want to solo or mute it.
It’s annoying that you need to go the mixer just to do this!
So basically what you’re saying is that in the arrange window, although an instrument track looks like an audio track in a way, it’s actually the midi that you’re muting or solo’ing. And because that track takes its midi from an external track, that’s why you no longer have the option to mute or solo.
That logic can be defeated by performing the following experiment: in a fresh project, set up a VSTi with a very short percussive sound, and insert a super long reverb in the FX rack. If you trigger the sound, then quickly mute the instr. track, you would expect the reverb tail to still be heard (if you were only muting a midi track). But that’s not what happens.
So to me it makes no sense that in the scenario described in my first post, the solo & mute buttons of the audio path also get disabled!