Not This Again! Cut, Copy, Paste, and Split

Not sure konradh.
 
I never use Simple Instrument Tracks and splitting a Midi clip has always worked for me (unless it's been locked of course)

Maybe you have overlapping clips that you don't see. If you expand take lanes you would be able to tell. I hit "S" for split on a MIDI clip before and it did not split. I found that I simply had clips overlapping one another. I was able to see this when I expanded the Take Lanes. So it actually did split the clip, it was just not visible due to the overlapping clips. It showed when I expanded the take lanes.

This might be strange,  but try emptying the Pic Cache folder.  That seems to solve many intermittent issues like you describe that i have....

Thanks for thinking of us. You'll notice that I'm wearing glasses (designed to protect me from just such exposure as you mention) but my poor grandson isn't so a big thanks from him. Perhaps there's a possibility for some merchandising here. Is the mothership listening?

And I agree with Jimbo88 that emptying the pic cache can often clear up bizzarro Sonar behaviours as described. As I'm writing this though I recall that when I empty Sonar's pic cache, I always close Sonar, empty the pic cache and then restart Sonar, so I can't say unequivocally that it's emptying the cache when it could as easily be restarting Sonar that clears the problem. Hmm! Further investigation required if and when I have a bizzarro Sonar event.

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