"Change instruments" generates instruments without limit, losing mixer settings
In MS 3.3.4, but I doubt that it's better elsewhere.
I have two parts that each switches between oboe and violin with "Change Instrument" texts (as per the manuscript). This is clearly a mistake, and I'll need more parts. Each "Change Instrument" orders a new one from the music store; can't identify or use the ones already used on that staff; as a result, instruments (and channels, and even ports) proliferate in the Mixer, and you can't tell what any of the Mantovani Orchestra of violins corresponds to, and worse yet, all of their pans are wrong (they didn't "inherit"), and, worse yet, trying to fix them seems to just mess them up worse.
I hope I can get it back to one instrument per staff by moving the oboes to new staves, but this is a poor situation. "Change Instrument settings" should list instruments previously used on that staff for you to select before offering you a new one (i.e., what it does now). There will be another report and cry for help shortly if I can't get rid of all the subinstruments by losing the "Change Instrument"s.