JMichaelTX:
We have a "Macro Library" here in the forum, and there is a "Macro Library" that comes with the KM app. You didn't specific which, and It's not our job to go looking.
IAC you have made modifications to some macro. The problem you are seeing is most likely due to your changes, but we can't tell because we don't have the macro.
Finally, you didn't say whether or not my guess about your issue was correct:
Sorry that confused you. That's the name Keyboard Maestro uses. If anyone else was confused, I was referring to the Keyboard Maestro distribution not the forum collection.
I made no changes whatsoever, so:
No, your guess wasn't the problem.
@peterlewis , I wonder why the replace regex is showing up as the new filename in your Batch Rename Files in the Finder macro: