[Rich]

Hi. Using PT 9 HD/TDM and having a weird recurring problem. I hide and make tracks inactive by un-highlighting the little button in the tracks window/column of the mix page. Then without notice or explanation they reappear on the mix page . They are grayed out and inactive , but clutter up the mix page. Can someone please explain why this is happening and how to remedy it ? Thanks in advance for your help . Best wishes, Rich