Paste at Origin for MIDI cc data

Hi all,
I just started to notice that Paste at Origin isn’t working as intended (or, as it used to for me) when copy/pasting midi cc data. It’s behaving differently than copy/pasting other things, such as midi notes or regions. When I copy/paste at origin anything else, it selects the newly pasted material and leaves the original in its place. This allows me to nudge the new copy wherever I wish. However, when pasting at origin any midi cc data, as soon as I try to nudge it everything moves…ie doesn’t leave the original in its place. Any ideas on what could be causing this weird quirk?