Hi Paul! We’re centralizing all of the issues and support (and requests) in https://github.com/oodesign/merge-duplicate-symbols
May I ask you to create a new issue with some extra details ( such as if it’s working with symbols from other Libraries) and move on from there?
Also having a copy (or a simplified version, with just the symbols but no real content) of the Sketch file would be helpful, so that we can dig a bit deeper and test it on our own.
Thanks!