Hi there, it happened to me just a few days ago: Sequential Paste didn’t require me to “copy” the text, I just had to select it, et voilà! It was copied!
I’m not able to replicate this behaviour, just need somebody more expert than me to help out!
BTW the “Copy” option in the main contextual menu of PoPClip doesn’t longer work… any idea? I think it could be a Mac update… because I had the same issue with pastebot, wrote them, and got a new download link…