Different terrain look in editor and in build application.

Hi all. I have trouble with terrain material. I use Unity terrain component. I create terrain component programmatically.

 private bool m_TerrainHeightChanged = false;
 private bool m_TerrainTextureChanged = false;
 private float[,] m_Heights = new float[SectorSize, SectorSize];
 public SplatPrototype[] SplatTextures;
 private float[, ,] m_Alphamaps;
             
 private void Start()
 {
    m_Terrain = gameObject.AddComponent<UnityEngine.Terrain>();
             
    m_TerrainData = new TerrainData();
             
    m_TerrainData.heightmapResolution = SectorSize;
    m_TerrainData.size = new Vector3(SectorSize, SectorHeight, SectorSize);
    m_TerrainData.SetHeights(0, 0, m_Heights);
             
    m_TerrainData.alphamapResolution = SectorSize;
    m_Alphamaps = new float[SectorSize, SectorSize, SplatTextures.Length];
    
    SetAllTexture(5);
    
    m_TerrainData.splatPrototypes = SplatTextures;
    m_TerrainData.SetAlphamaps(0, 0, m_Alphamaps);
    m_TerrainTextureChanged = false;
             
    m_TerrainData.SetDetailResolution(DetailResolution, DetailResolutionPatch);
                         
    m_Terrain.terrainData = m_TerrainData;
                         
    TerrainCollider myCollider = gameObject.AddComponent<TerrainCollider>();
    myCollider.terrainData = m_TerrainData;
             
    gameObject.transform.position = new Vector3(X, 0, Z);
             
    gameObject.tag = "TerrainSector";
    gameObject.layer = 9;
             
    UpdateNeighbors();
 }
             
 public void SetAllTexture(int _Texture)
 {
    for (int x = 0; x < m_Alphamaps.GetLength(0); x++)
    {
       for (int z = 0; z < m_Alphamaps.GetLength(1); z++)
       {
          for (int t = 0; t < m_Alphamaps.GetLength(2); t++)
          {
             m_Alphamaps[z, x, t] = t == _Texture ? 1 : 0;
          }
       }
    }            
    
    m_TerrainTextureChanged = true;
 }
             
 private void Update()
 {
    if (m_TerrainHeightChanged && m_TerrainData != null)
    {
       m_TerrainData.SetHeights(0, 0, m_Heights);
       m_TerrainHeightChanged = false;
    }
             
    if (m_TerrainTextureChanged && m_TerrainData != null)
    {
       m_TerrainData.SetAlphamaps(0, 0, m_Alphamaps);
       m_TerrainTextureChanged = false;
    }
 }

Everything works fine in editor. But after building project and running exe file, my terrain looks glossy. See difference on these pictures. First one is from editor and second from build application.

Terrain is matte in editor and glossy in build. I also added shaders (Nature/Terrain/Standard and Nature/Terrain/Diffuse) in Project Settings -> Graphics.

I also see these errors in console after build

• Shader error in 'Hidden/NFAA': Compiled shader code uses too many instruction slots (112). Max. allowed by the target (ps_2_0) is 96. at line 1 (on d3d9). Compiling Fragment program.

• Shader error in 'Hidden/NFAA': Compiled shader code uses too many instruction slots (99). Max. allowed by the target (ps_2_0) is 96. at line 1 (on d3d9). Compiling Fragment program

• Shader error in 'Hidden/NFAA': Too many math instructions for SM2.0 (99 needed, max is 64). Try #pragma target 3.0 at line 78 (on d3d9). Compiling Fragment program

• Shader error in 'Hidden/NFAA': Too many math instructions for SM2.0 (91 needed, max is 64). Try #pragma target 3.0 at line 114 (on d3d9). Compiling Fragment program

But I'm not sure what it means and if it matters. I'd really appreciate your help.