Version 3.1u1 Reopened one of my sequences and I've noticed some major corruption The screen capture attached will probably best explain it. I've marked where effects have been duplicated and/or disappeared out the sequence. I've had this happen a couple of times now to a much lesser extent, but I've never - and still haven't - been able to pin point what is causing this. Initially I just thought I'd just been careless with dragging selected effects as it'd only been a couple of things out of position. But this time it's made quite a mess. My gut feeling is I may have control+dragged these elements to clone them originally? But I do copy & paste a lot of items around too. Not sure if that helps with the troubleshooting. Has any one else seen this happen?