diff --git a/Samples/Desktop/D3D12MeshShaders/src/DynamicLOD/D3D12DynamicLOD.cpp b/Samples/Desktop/D3D12MeshShaders/src/DynamicLOD/D3D12DynamicLOD.cpp
index 2ae354c7c..a33fa56e0 100644
--- a/Samples/Desktop/D3D12MeshShaders/src/DynamicLOD/D3D12DynamicLOD.cpp
+++ b/Samples/Desktop/D3D12MeshShaders/src/DynamicLOD/D3D12DynamicLOD.cpp
@@ -606,17 +606,19 @@ void D3D12DynamicLOD::PopulateCommandList()
     m_commandList->SetGraphicsRootDescriptorTable(2, m_srvHeap->GetGPUDescriptorHandleForHeapStart());
     m_commandList->SetGraphicsRootShaderResourceView(3, m_instanceBuffer->GetGPUVirtualAddress());
 
-    uint32_t dispatchCount = DivRoundUp(m_instanceCount, c_maxGroupDispatchCount);
+    uint32_t instancesPerDispatch = c_maxGroupDispatchCount * AS_GROUP_SIZE;
+    uint32_t dispatchCount = DivRoundUp(m_instanceCount, instancesPerDispatch);
 
     for (uint32_t i = 0; i < dispatchCount; ++i)
     {
-        uint32_t offset = dispatchCount * i;
-        uint32_t count = min(m_instanceCount - offset, c_maxGroupDispatchCount);
+        uint32_t offset = instancesPerDispatch * i;
+        uint32_t count = min(m_instanceCount - offset, instancesPerDispatch);
 
         m_commandList->SetGraphicsRoot32BitConstant(1, offset, 0);
         m_commandList->SetGraphicsRoot32BitConstant(1, count, 1);
 
-        m_commandList->DispatchMesh(count, 1, 1);
+        uint32_t groupCount = DivRoundUp(count, AS_GROUP_SIZE);
+        m_commandList->DispatchMesh(groupCount, 1, 1);
     }
 
     // Indicate that the back buffer will now be used to present.
diff --git a/Samples/Desktop/D3D12MeshShaders/src/DynamicLOD/MeshletAS.hlsl b/Samples/Desktop/D3D12MeshShaders/src/DynamicLOD/MeshletAS.hlsl
index 06f5fac10..29d7bdf3b 100644
--- a/Samples/Desktop/D3D12MeshShaders/src/DynamicLOD/MeshletAS.hlsl
+++ b/Samples/Desktop/D3D12MeshShaders/src/DynamicLOD/MeshletAS.hlsl
@@ -47,10 +47,10 @@ void main(uint dtid : SV_DispatchThreadID, uint gtid : SV_GroupThreadID, uint gi
     uint lodLevel = MAX_LOD_LEVELS; // LOD level of this thread's instance
     uint lodOffset = 0;             // Offset into its LOD-level instance list
 
-    uint instanceIndex = DrawParams.InstanceOffset + dtid;
+    uint instanceIndex = dtid;
     if (instanceIndex < DrawParams.InstanceCount)
     {
-        Instance instance = Instances[instanceIndex];
+        Instance instance = Instances[DrawParams.InstanceOffset + instanceIndex];
 
         if (IsVisible(instance.BoundingSphere))
         {