I have a midi keyboard track that has about 8 or 9 different takes. I've selected one of them as the best and have frozen and hidden the others. When I open the session, the keyboard track is at zero on the channel fader. I can adjust the volume of the keyboard track up or down, let the song play 'til the end or any point in between, rewind to the beginning, play it again, and the adjusted keyboard fader volume remains where I left it ... as it should. But here's my problem: I close down the session â€” making sure I've saved everything before I do, including whatever adjustments I've made to the volume on the keyboard track â€” but when I reopen the session, the keyboard track volume has jumped back to zero. This happens every time, and only to this one track. How do I fix this? Thanks in advance.