Kevin,

I was able to do a quick fix, switching it from using our legacy Place Leader function, to our Place Block function. That supports layer suffixes, and was nothing more than a simple one line of code change. I don't feel this is the best long-term fix, however. I'd like to see it still placing an MLeader, just without an arrow, so that you could easily add a leader if desired after the fact. But that will be more involved, leaving it for another day.
This quick fix will be part of this week's update.

--J