diff --git a/Assets/Editor/Prefabs/Default_Level.prefab b/Assets/Editor/Prefabs/Default_Level.prefab
index d02d669f53..0267131fa0 100644
--- a/Assets/Editor/Prefabs/Default_Level.prefab
+++ b/Assets/Editor/Prefabs/Default_Level.prefab
@@ -185,7 +185,7 @@
                         {
                             "id": {
                                 "materialAssetId": {
-                                    "guid": "{935F694A-8639-515B-8133-81CDC7948E5B}",
+                                    "guid": "{0CD745C0-6AA8-569A-A68A-73A3270986C4}",
                                     "subId": 803645540
                                 }
                             }
@@ -197,7 +197,7 @@
                                 "id": {
                                     "lodIndex": 0,
                                     "materialAssetId": {
-                                        "guid": "{935F694A-8639-515B-8133-81CDC7948E5B}",
+                                        "guid": "{0CD745C0-6AA8-569A-A68A-73A3270986C4}",
                                         "subId": 803645540
                                     }
                                 }
diff --git a/Gems/AtomContent/Sponza/Assets/Prefabs/test_sponza_material_conversion.prefab b/Gems/AtomContent/Sponza/Assets/Prefabs/test_sponza_material_conversion.prefab
index b5aed9d14b..92874574e4 100644
--- a/Gems/AtomContent/Sponza/Assets/Prefabs/test_sponza_material_conversion.prefab
+++ b/Gems/AtomContent/Sponza/Assets/Prefabs/test_sponza_material_conversion.prefab
@@ -581,7 +581,7 @@
                         {
                             "id": {
                                 "materialAssetId": {
-                                    "guid": "{935F694A-8639-515B-8133-81CDC7948E5B}",
+                                    "guid": "{0CD745C0-6AA8-569A-A68A-73A3270986C4}",
                                     "subId": 803645540
                                 }
                             }
@@ -593,7 +593,7 @@
                                 "id": {
                                     "lodIndex": 0,
                                     "materialAssetId": {
-                                        "guid": "{935F694A-8639-515B-8133-81CDC7948E5B}",
+                                        "guid": "{0CD745C0-6AA8-569A-A68A-73A3270986C4}",
                                         "subId": 803645540
                                     }
                                 }
@@ -608,10 +608,10 @@
                         "Configuration": {
                             "ModelAsset": {
                                 "assetId": {
-                                    "guid": "{935F694A-8639-515B-8133-81CDC7948E5B}",
-                                    "subId": 277333723
+                                    "guid": "{0CD745C0-6AA8-569A-A68A-73A3270986C4}",
+                                    "subId": 277889906
                                 },
-                                "assetHint": "objects/groudplane/groundplane_521x521m.azmodel"
+                                "assetHint": "objects/groudplane/groundplane_512x512m.azmodel"
                             }
                         }
                     }
diff --git a/Gems/AtomLyIntegration/CommonFeatures/Assets/LevelAssets/default.slice b/Gems/AtomLyIntegration/CommonFeatures/Assets/LevelAssets/default.slice
index b4c9eac10f..e0c7c9e456 100644
--- a/Gems/AtomLyIntegration/CommonFeatures/Assets/LevelAssets/default.slice
+++ b/Gems/AtomLyIntegration/CommonFeatures/Assets/LevelAssets/default.slice
@@ -836,7 +836,7 @@
 										</Class>
 										<Class name="AZ::Render::MeshComponentController" field="Controller" type="{D0F35FAC-4194-4C89-9487-D000DDB8B272}">
 											<Class name="AZ::Render::MeshComponentConfig" field="Configuration" version="1" type="{63737345-51B1-472B-9355-98F99993909B}">
-												<Class name="Asset" field="ModelAsset" value="id={935F694A-8639-515B-8133-81CDC7948E5B}:1087c6db,type={2C7477B6-69C5-45BE-8163-BCD6A275B6D8},hint={objects/groudplane/groundplane_521x521m.azmodel},loadBehavior=1" version="2" type="{77A19D40-8731-4D3C-9041-1B43047366A4}"/>
+												<Class name="Asset" field="ModelAsset" value="id={0CD745C0-6AA8-569A-A68A-73A3270986C4}:10904372,type={2C7477B6-69C5-45BE-8163-BCD6A275B6D8},hint={objects/groudplane/groundplane_512x512m.azmodel},loadBehavior=1" version="2" type="{77A19D40-8731-4D3C-9041-1B43047366A4}"/>
 												<Class name="AZ::s64" field="SortKey" value="0" type="{70D8A282-A1EA-462D-9D04-51EDE81FAC2F}"/>
 												<Class name="unsigned char" field="LodOverride" value="255" type="{72B9409A-7D1A-4831-9CFE-FCB3FADD3426}"/>
 												<Class name="bool" field="ExcludeFromReflectionCubeMaps" value="false" type="{A0CA880C-AFE4-43CB-926C-59AC48496112}"/>