The first tile added from the palette in Unity 2018.3.0a10 OSX, needs to be drawn in the center of the scene.

Once added you can paint anywhere normal. This behaviour is not seen with new project. The project attached is quite large.

Steps to reproduce
- Open Unity 2018.3.0a10
- Open the scene "RobbieTestScene"
- Create > 2D > TileMap
- Window > 2D > Tilemap Palette.
- Select a tile to paint
- Try painting (Selection is always always center)
NOTICE ISSUE >> Cannot place the first tile anywhere but center. (Or in the bottom left of the canvas). Once painted the behaviour goes back to expected.

Broken
OSX : 2018.3.0a10

Working:
Windows 10, 2018.3.0a10
OSX 2018.3.0a9