Decal showing in Editor but in in Play mode?

[Kuinshi]

Currently using Unity 2019.3.2 and trying to make use of your Decals, I followed the Set Up Tutorial but unfortunately the Decal does only show in Editor Mode but not in Game view? Anybody knows how to fix that?

[MrKsiJ]

Same problem

[MrKsiJ]

Only I don't have it displayed not in the editor not in the game