Hi,
With the latest GameMaker 2.3.3.574 I get a lot of "only referenced once" errors. Is that normal? The plugin itself seems to work though.
Also I'd like to point out that even though it's supposed to work with 2.3+, I couldn't get it to work with 2.3.1. (this time due to compiling errors) Hence I had to update to latest stable today.