I used this all the time in 1.12, but it seems the latest versions for 1.13 are a bit bugged. Armour stands do not seem to load into the world when you place a piece of furniture. I am not sure if it is conflicting or not, but either way, it is a good plugin for decorating use an amazing community.
My log if it can be of use to my issue:
https://pastebin.com/xQdBnQbE