Welcome to the forum.
Not sure that I have seen what you describe, but remember, one can Solo several Tracks (or just one), and all others will be Muted. Also, one can Mute selected Audio Tracks, one at a time. Is that what you are seeing?
Bill, Tks for the welcome and for taking the time to read thru & replty.
I've been a sound engineer for over 30 years. There is a world standard as to how solo and mute work on any mixer, soft- or hardware-based, and CS 5,.5 is definitely up the pole. It works like it should in PP2.0, asnd PP-CS 4.0. The strangest thing I find is that nobody else has noticed this phenomenon?? What have you found, if you try to reproduce what I mentioned... does your solo & mute behave exactly as they should?
They do in 5, but my trial of 5.5 ran out, so I can't test.
Damndest thing..! I noticed this bug while doing a big project. I am now on sequence 3 of the project, which also has 3 audio tracks. I click Solo this morning (by accident) and it works as it should. Adobe, this bug is growing bigger... please get some robo-insecticide and kill it (bit by bit, or byte!) It has given me countless unnecessary work-arounds which is time-wasting.
Background: I honestly was'nt sure of something: I thought the buttons did work correctly at one time, but because I started this project on PP2, then moved it to CS 4, then to CS 5.5, I thought I was mistaken, and that it must've been while on PP2 or PP4 that my memory seems to recall that it worked properly. But now that I see it working properly this a.m. on PP 5.5, I believe my memory was correct, that it did indeed work properly on PP 5.5 in the beginning, then went rogue.
Update: 2 hours later, the Solo is back to faulty mode again, just like I explained at launch of this post.