Daz, the preview window’s dungeon config still has the default values (grid size 400,400,200). You can sync that to you main window by clicking the Properties button in the preview window in the theme editor and select Dungeon. Then expand the config section in the details window and set the values correctly there. The theme file will remember these settings when you open it the next time.
Let me know if it works out
The plugins requires more documentation and proper video tutorials. I’ll be giving it priority.
In the Realtime demo, I’m resetting the dungeon config in the level blueprint (to give it a random seed to get a new level every time). So you need to set your dungeon config in the Level blueprint because the demo overrides it