In case if someone still uses this plugin.
I updated Dialogue System plugin to UE 4.18 (this version is also compatible with my Quest System Plugin). Plugin compiled and should work with shipped builds.
Link: https://…com/open?id=1LmVd6ACdFTUNMQdT2C58FNM3hOwKWKlP
This plugin has MIT license, so I think I can share my own version of it.