Thanks for your help but I have actually done a full Sierra OS re-install and completely fresh installation of Cubase 9.0.1 and can instantly reproduce the problem. Would a video demonstration help? I’m more than happy to put one together.
The easiest place to repro this in on inserts. Try to click once on the little “e” icon to open the insert. Do this a dozen times and you should notice that many times, Cubase thinks you want to drag the insert instead of open it.
Similarly, create a MIDI clip and double click to open it, repeat a dozen times and you should notice that sometimes, it simply won’t open the editor for the clip at all.
I’m using an Apple Magic Mouse (if that helps at all). The type of mouse could potentially be a factor.
Thanks for the suggestion but I have already tried safe mode and trashing preferences but it made no difference.
As I mentioned previously the problem seems worse for me when using a mouse mat / pad. I’ve tried 3 different types and all cause the problem to different degrees but it seems to work pretty much fine with the mouse direct on the desk surface.
I still have yet to hear back from YAHAMA Australia about this. This is definitely a show-stopper for macOS Sierra users. I’m just happy that El Capitan is at least working, but I hope there’s a plan from Steinberg to repair this in an update.
Anyone have any solution to this? I found double clicking can work SOMETIMES when I take my mouse off the mousepad and have it on my hard desk. But that’s not a solution… I wonder this problem is at the root?