Correct marked lines of code.
FVector AHexGrid::GetHexPosition(int32 x, int32 y, float cornerRadius)
{
FVector position;
position.X = x cornerRadius 1.5f; ////fix this line
position.Y = (y 2 + x) cornerRadius * 0.866f; ////fix this line
position.Z = 0;
return position;
}