Hideout Tiles' Texture With Transparency Keep Breaking

Trying to fill my hideout with the new "Water Plane" tileset that was added in the last update. Problem is, they keep "breaking" randomly whenever they load into my camera view.

1) the tile set does not cover the floor below it


2) Switching back and forth to the same tile index "fixes" the issue, but only temporarely. Like I said, the aforementioned problem keeps happening randomly