Sequence contains no matching element during import

Keep getting this error when trying to import a new set of ROMs. Happens on any folder/platform I choose. I have reinstalled launchbox over the top of the existing installation but still the error persists. If I also use the “tools → scan for new games” option, launch box just locks up but I dont get the exception - guessing its trying to access an empty array or something so maybe a corrupt settings file somewhere?

Sequence contains no matching element

App:     LaunchBox
Version: 12.11
Type:    System.InvalidOperationException
Site:    Void ThrowNoMatchException()
Source:  System.Linq

at System.Linq.ThrowHelper.ThrowNoMatchException()
at Unbroken.LaunchBox.Windows.Integrations.RetroArch.GetRequiredBiosFileNameForPlatform(String officialPlatformName)
at Unbroken.LaunchBox.Windows.Desktop.ViewModels.ImportWizardRetroArchBiosViewModel.ManageSupportedContext(Object )
at Unbroken.LaunchBox.Windows.Desktop.ViewModels.ImportWizardRetroArchBiosViewModel.GetBiosFileName(ImportWizardInstallRetroArchViewModel installRetroArchPage, ImportWizardEmulatorViewModel emulatorPage, ImportWizardPlatformSelectViewModel platformPage)
at ConfigurationProcess.AwakePrincipalIterator(ImportWizardInstallRetroArchViewModel installRetroArchPage, ImportWizardEmulatorViewModel emulatorPage, ImportWizardPlatformSelectViewModel platformPage, ConfigurationProcess )
at Unbroken.LaunchBox.Windows.Desktop.ViewModels.ImportWizardRetroArchBiosViewModel.OnActivated()
at StubProcess.AwakePrincipalIterator(Object , StubProcess )
at Unbroken.LaunchBox.Windows.Desktop.ViewModels.WizardViewModel.<>c__DisplayClass78_0.MoveSupportedRegistry()
at System.Windows.Threading.DispatcherOperation.InvokeDelegateCore()
at System.Windows.Threading.DispatcherOperation.InvokeImpl()
--- End of stack trace from previous location where exception was thrown ---
at System.Windows.Threading.DispatcherOperation.Wait(TimeSpan timeout)
at System.Windows.Threading.Dispatcher.InvokeImpl(DispatcherOperation operation, CancellationToken cancellationToken, TimeSpan timeout)
at System.Windows.Threading.Dispatcher.Invoke(Action callback, DispatcherPriority priority, CancellationToken cancellationToken, TimeSpan timeout)
at System.Windows.Threading.Dispatcher.Invoke(Action callback, DispatcherPriority priority)
at Unbroken.LaunchBox.Windows.Threading.CollectFocusPrototype(Object , Object , DispatcherPriority )
at Unbroken.LaunchBox.Windows.Threading.Invoke(Action callback, DispatcherPriority priority)
at Unbroken.LaunchBox.Windows.Desktop.ViewModels.WizardViewModel.<>c__DisplayClass78_0.PatchSupportedRegistry()
at Unbroken.LaunchBox.Windows.Threading.<>c__DisplayClass0_0.VerifyFocusAccount(Object )
at Unbroken.LaunchBox.Windows.Threading.<>c__DisplayClass0_0.ManageInvalidStrategy()
at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)
--- End of stack trace from previous location where exception was thrown ---
at System.Threading.ThreadHelper.ThreadStart()

Recent Log:

13:16:48 Exception

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