MIDI Editing duplicate notes

[AMcG]

Hi,

When I am editing parts using the piano roll, sometimes when I slide a note it will cause another note, elsewhere in the pattern, to split in two, causing it to trigger twice and sound like a glitch. I've probably changed some setting unintentionally, but can't find how to solve it in the preferences. Any idea what I need to change to solve this?

Cheers.

[AMcG]

It's alright, false alarm. Spent too long editing audio and had gotten into the habit of leaving the grabber set to separation.