So I created a new WIM, created a new Secure Task on Deployment workbench and went and try to create the catalog file again but still no luck.
Below is the error that is coming up when I try to generate a new unattend.xml
PROGRESS: 69: Cleaning up...
ERROR: Unable to generate catalog on D:\DeploymentShare\Operating Systems\WIN10x64_21H1\WIN10x64_21H1.WIM: System.InvalidOperationException: The operation failed to complete. ---> System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.NotImplementedException: The method or operation is not implemented.
at System.Runtime.InteropServices.Marshal.ThrowExceptionForHRInternal(Int32 errorCode, IntPtr errorInfo)
at Microsoft.ComponentStudio.ComponentPlatformInterface.CbsSessionAdaptor..ctor(String bootDrive, String imageWinDir, String servicingPath)
at Microsoft.ComponentStudio.ComponentPlatformInterface.OfflineImageImpl.InitializePackages()
at Microsoft.ComponentStudio.ComponentPlatformInterface.OfflineImageImpl..ctor(OfflineImageInfo imageInfo)
--- End of inner exception stack trace ---
at System.RuntimeMethodHandle.InvokeMethod(Object target, Object[] arguments, Signature sig, Boolean constructor)
at System.Reflection.RuntimeConstructorInfo.Invoke(BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)
at System.RuntimeType.CreateInstanceImpl(BindingFlags bindingAttr, Binder binder, Object[] args, CultureInfo culture, Object[] activationAttributes, StackCrawlMark& stackMark)
at System.Activator.CreateInstance(Type type, BindingFlags bindingAttr, Binder binder, Object[] args, CultureInfo culture, Object[] activationAttributes)
at System.Reflection.Assembly.CreateInstance(String typeName, Boolean ignoreCase, BindingFlags bindingAttr, Binder binder, Object[] args, CultureInfo culture, Object[] activationAttributes)
at Microsoft.ComponentStudio.ComponentPlatformInterface.Cpi.PlatformImplementation.CreateOfflineImageInstance(OfflineImageInfo imageInfo)
--- End of inner exception stack trace ---
at Microsoft.ComponentStudio.ComponentPlatformInterface.Cpi.PlatformImplementation.CreateOfflineImageInstance(OfflineImageInfo imageInfo)
at Microsoft.ComponentStudio.ComponentPlatformInterface.OfflineImageCatalog.Serialize(OfflineImageInfo imageInfo)
at Microsoft.ComponentStudio.ComponentPlatformInterface.OfflineImageInfo.CreateCatalog()
at Microsoft.BDD.Catalog.Program.DoCatalog()
Non-zero return code from catalog utility, rc = 2002