I have noticed that frequently, if not always, the code is not triggered when pressing a button or text display object that was just created by copy/paste. A minor edit or any kind will restore the triggering. It can be very confusing when your button or TDO does not respond to a click.
It’s definitely always, and that’s a good thing because that made it relatively easy to track down and fix. Amazing that was never noticed before, looks like that bug has been there from the earliest beta versions of Panorama X 8 or 9 years ago.