I ran the update on my Windows 8.1 Acer laptop, 64bit OS

When I start doing some work within the media section, FTM crashes & the FMTCrashLog reads:

"An exception of type 'System.ArgumentOutOfRangeException' occurred and was caught.
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12/20/2014 19:57:05
Type : System.ArgumentOutOfRangeException, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
Message : Index was out of range. Must be non-negative and less than the size of the collection.
Parameter name: index
Source : mscorlib
Help link :
ActualValue :
ParamName : index
Data : System.Collections.ListDictionaryInternal
TargetSite : T get_Item(Int32)
HResult : -2146233086
Stack Trace : at System.Collections.Generic.List`1.get_Item(Int32 index)
at FTM.UI.MediaModule.MediaCollectionListView.ᙏ(Object ᙂ, RetrieveVirtualItemEventArgs )
at System.Windows.Forms.ListView.WmReflectNotify(Message& m)
at System.Windows.Forms.ListView.WndProc(Message& m)
at FTM.Shared.Controls.ThemedListView.WndProc(Message& message)
at System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

Additional Info:

MachineName : KELLIE_MORSE
TimeStamp : 20/12/2014 8:57:05 AM
FullName : Microsoft.Practices.EnterpriseLibrary.ExceptionHandling, Version=2.0.0.0, Culture=neutral, PublicKeyToken=69cf5367912b86b4
AppDomainName : FTM.exe
ThreadIdentity : Kellie_Morse\Kellie_J_Morse
WindowsIdentity : Kellie_Morse\Kellie_J_Morse"


*************
Event Log- Application Error
Faulting application name: FTM.exe, version: 22.0.0.1345, time stamp: 0x54925b28
Faulting module name: KERNELBASE.dll, version: 6.3.9600.17278, time stamp: 0x53eebf2e
Exception code: 0xe0434352


Can anyone help with this error- is really annoying that FTM is crashing so often