Hi Sean I did a clean build, also removing the mastif zoner library from my maven cache. It does get into the distribution now.
My git branch got a bit confused when I tried to merge the tag into it. But by destroying my branch and using switch -c to create a new one off the 5.1.0 tag it seemed to do the right thing. I guess when 5.1.0 is merged into main, that won't be an issue Peter