@havewisdom: Thanks for this report. My quick fix from yesterday actually made the situation worse. Instead of changing the code I should have changed the documentation.
I just uploaded a new version: Do the bugs disappear?
Background: Being able to copy a card-id from is indeed very useful. But for many dialogs/windows like AddCards or even EditCurrent Anki doesn’t have the card id. So it’s not easy or quick to add a context menu “copy cid” to these editors. So I just removed the “copy cid” option. I put the EditCurrent part on my (very long term) todo list, see here.
For background about the add cards window, see here.