diff --git a/spine-unity/Modules/com.esotericsoftware.spine.on-demand-loading/Runtime/GenericOnDemandTextureLoader.cs b/spine-unity/Modules/com.esotericsoftware.spine.on-demand-loading/Runtime/GenericOnDemandTextureLoader.cs
index 95e33ce19..1f9207fe0 100644
--- a/spine-unity/Modules/com.esotericsoftware.spine.on-demand-loading/Runtime/GenericOnDemandTextureLoader.cs
+++ b/spine-unity/Modules/com.esotericsoftware.spine.on-demand-loading/Runtime/GenericOnDemandTextureLoader.cs
@@ -264,6 +264,10 @@ namespace Spine.Unity {
 			System.Action<Texture> onTextureLoaded) {
 
 			PlaceholderTextureMapping[] placeholderTextures = placeholderMap[materialIndex].textures;
+			if (placeholderTextures == null || textureIndex >= placeholderTextures.Length) {
+				return null;
+			}
+
 			TargetReference targetReference = placeholderTextures[textureIndex].targetTextureReference;
 			loadedDataAtMaterial[materialIndex].lastFrameRequested = Time.frameCount;