I am working on a project with a 5.1 Surround mix. Everything was working fine, when all of a sudden, I can't write changes to my sound mix. In other words, whenever I set a channel to "write", "latch" or "touch" and then run a pass to record my changes to the mix (whether they be to the 5.1 balance, the overall level of a track or an effect setting), Premiere refuses to record them (and, yes, I am making sure that when I review my mix, the channels are not set to "write"). I was not having any problem with this, initially; Premiere was faithfully recording my mixes and playing back the automation, but suddenly it stopped. I have tried everything I can think of. Any help at all would be greatly appreciated.