Bug with how UMA saves out a mesh

[richardm1985]

Using either slot builder or material builder I am getting the below errors.

I have modeled 5 items for UMA, all import into Unity fine. Only one of these items successfully creates itself. I have tested this numerous items and even edited the FBX files in 3ds Max to try alternate solutions.

I can recreate the item that succeed numerous times without a problem.

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Couldn't add object to asset file because the Mesh 'Greek Greaves' is already an asset at 'Assets/Richards files/Armour/Legs/Greek Greaves.FBX'!
UnityEditor.AssetDatabase:CreateAsset(Object, String)
UMAEditor.UMASlotProcessingUtil:CreateSlotData(String, String, String, SkinnedMeshRenderer, UMAMaterial, SkinnedMeshRenderer) (at Assets/Standard Assets/Editor/UMA/Core/UMASlotProcessingUtil.cs:52)
UMAEditor.UmaSlotBuilderWindow:CreateSlot_Internal() (at Assets/Standard Assets/Editor/UMA/Core/UmaSlotBuilderWindow.cs:124)
UMAEditor.UmaSlotBuilderWindow:CreateSlot() (at Assets/Standard Assets/Editor/UMA/Core/UmaSlotBuilderWindow.cs:94)
UMAEditor.UmaSlotBuilderWindow:OnGUI() (at Assets/Standard Assets/Editor/UMA/Core/UmaSlotBuilderWindow.cs:71)
UnityEditor.DockArea:OnGUI()

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UnityException: Creating asset at path Assets/Richards files/Slots/Greek Greaves/Greek Greaves.asset failed.
UMAEditor.UMASlotProcessingUtil.CreateSlotData (System.String slotFolder, System.String assetFolder, System.String assetName, UnityEngine.SkinnedMeshRenderer mesh, UMA.UMAMaterial material, UnityEngine.SkinnedMeshRenderer prefabMesh) (at Assets/Standard Assets/Editor/UMA/Core/UMASlotProcessingUtil.cs:52)
UMAEditor.UmaSlotBuilderWindow.CreateSlot_Internal () (at Assets/Standard Assets/Editor/UMA/Core/UmaSlotBuilderWindow.cs:124)
UMAEditor.UmaSlotBuilderWindow.CreateSlot () (at Assets/Standard Assets/Editor/UMA/Core/UmaSlotBuilderWindow.cs:94)
UMAEditor.UmaSlotBuilderWindow.OnGUI () (at Assets/Standard Assets/Editor/UMA/Core/UmaSlotBuilderWindow.cs:71)
System.Reflection.MonoMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) (at /Users/builduser/buildslave/mono-runtime-and-classlibs/build/mcs/class/corlib/System.Reflection/MonoMethod.cs:222)

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