Strange problem has turned up in my Cakewalk...the volume on my midi instruments (TTS-1 and BBC Orchestra is what I use) is dropping down to '0' after about a minute. If I bring up the TTS-1 I can watch line one just fade down to mute and with BBCSO I can see the volume on the Spitfire Audio fade down to mute. Can't figure it out. I don't know if this turned up after an update or if it's something that I did accidentally. Sound familiar to anybody? I would really appreciate any help. Thanks for reading.