Before August Patch 1.2.4:
I had problems placing the big 4-hex wonders like the grand canyon. It worked 2-3 patches before
The coastlines also had problems like creating invisible cliffs when adding land and creating sandy dunes when changing hexes to coast
sometimes there are also single hexes which seem to be buggy when changing hexes to a different city. i had towns where I couldnt build anything on any hexes after adding hexes that previously belonged to another city.
After August Patch 1.2.4:
All the Icons in the upper left Menu disapeared and the hotkey doesn't work anymore.
this mod is really good. I like to use it to delete urban districts and it is super in making the "suboptimal" map-generation a little better
please update it for the august patch UI-changes.