Intermittent Error Running Suborchestrator

**Describe the bug**
We have an orchestration that launches 3 to 6 suborchestrations using context.df.TaskAll(tasks) method. Most of the time the suborchestrations run as expected. Occasionally, and more frequently of late they are failing with the following message:

Exception while executing function: Functions.orchestrator-ukgpro-datawarehouse-report Exception binding parameter 'context' An item with the same key has already been added. Key: ExternalDurablePowerShellSDK

**Investigative information**

- Durable Functions extension version: [3.3.0, 4.0.0)
- durable-functions npm module version: 2.1.0
- Language (JavaScript/TypeScript) and version: Javascript
- Node.js version: ~16

***If deployed to Azure App Service***

- Timeframe issue observed: 7/5/2023, 8:00 PM PT
- Function App name: azrehfunc
- Function name(s): orchestrator-ukgpro-datawarehouse-report
- Region: North central US
- Orchestration instance ID(s):
- Orchestration: 11a5ea92-9144-4690-92cb-d62d532c6218
- Suborchestration: 11a5ea92-9144-4690-92cb-d62d532c6218:ExtractAccrualsInfo

**To Reproduce**
Unable to reproduce - it happens randomly and unsure how to troubleshoot it further.

**Expected behavior**
Each suborchestration is launched and completes or errors and results are returned to the parent orchestration.

**Actual behavior**
When one of the suborchestration fails with this error, the entire orchestration is marked as failed.

**Known workarounds**
n/a

Full Stack Trace

Microsoft.Azure.WebJobs.Host.FunctionInvocationException:
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw (System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
at Microsoft.Azure.WebJobs.Host.Executors.FunctionExecutor+d__26.MoveNext (Microsoft.Azure.WebJobs.Host, Version=3.0.37.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35: D:\a\_work\1\s\src\Microsoft.Azure.WebJobs.Host\Executors\FunctionExecutor.cs:352)
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw (System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult (System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
at Microsoft.Azure.WebJobs.Host.Executors.FunctionExecutor+d__18.MoveNext (Microsoft.Azure.WebJobs.Host, Version=3.0.37.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35: D:\a\_work\1\s\src\Microsoft.Azure.WebJobs.Host\Executors\FunctionExecutor.cs:108)
Inner exception System.InvalidOperationException handled at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw:
at Microsoft.Azure.WebJobs.Host.Executors.DelayedException.Throw (Microsoft.Azure.WebJobs.Host, Version=3.0.37.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35: D:\a\_work\1\s\src\Microsoft.Azure.WebJobs.Host\Executors\DelayedException.cs:27)
at Microsoft.Azure.WebJobs.Host.Executors.FunctionExecutor+ParameterHelper+d__36.MoveNext (Microsoft.Azure.WebJobs.Host, Version=3.0.37.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35: D:\a\_work\1\s\src\Microsoft.Azure.WebJobs.Host\Executors\FunctionExecutor.cs:922)
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw (System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
at System.Runtime.CompilerServices.TaskAwaiter.GetResult (System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
at Microsoft.Azure.WebJobs.Host.Executors.FunctionExecutor+d__32.MoveNext (Microsoft.Azure.WebJobs.Host, Version=3.0.37.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35: D:\a\_work\1\s\src\Microsoft.Azure.WebJobs.Host\Executors\FunctionExecutor.cs:492)
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw (System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
at System.Runtime.CompilerServices.TaskAwaiter.GetResult (System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
at Microsoft.Azure.WebJobs.Host.Executors.FunctionExecutor+d__26.MoveNext (Microsoft.Azure.WebJobs.Host, Version=3.0.37.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35: D:\a\_work\1\s\src\Microsoft.Azure.WebJobs.Host\Executors\FunctionExecutor.cs:306)
Inner exception System.ArgumentException handled at Microsoft.Azure.WebJobs.Host.Executors.DelayedException.Throw:
at System.ThrowHelper.ThrowAddingDuplicateWithKeyArgumentException (System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
at System.Collections.Generic.Dictionary`2.TryInsert (System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
at System.Collections.Generic.Dictionary`2.Add (System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
at Microsoft.Azure.WebJobs.Extensions.DurableTask.DefaultPlatformInformation.UsesExternalPowerShellSDK (Microsoft.Azure.WebJobs.Extensions.DurableTask, Version=2.0.0.0, Culture=neutral, PublicKeyToken=014045d636e89289: D:\a\_work\1\s\src\WebJobs.Extensions.DurableTask\DefaultPlatformInformation.cs:84)
at Microsoft.Azure.WebJobs.Extensions.DurableTask.OrchestrationTriggerAttributeBindingProvider+OrchestrationTriggerBinding.OrchestrationContextToString (Microsoft.Azure.WebJobs.Extensions.DurableTask, Version=2.0.0.0, Culture=neutral, PublicKeyToken=014045d636e89289: D:\a\_work\1\s\src\WebJobs.Extensions.DurableTask\Bindings\OrchestrationTriggerAttributeBindingProvider.cs:222)
at Microsoft.Azure.WebJobs.Extensions.DurableTask.OrchestrationTriggerAttributeBindingProvider+OrchestrationTriggerBinding.BindAsync (Microsoft.Azure.WebJobs.Extensions.DurableTask, Version=2.0.0.0, Culture=neutral, PublicKeyToken=014045d636e89289: D:\a\_work\1\s\src\WebJobs.Extensions.DurableTask\Bindings\OrchestrationTriggerAttributeBindingProvider.cs:146)
at Microsoft.Azure.WebJobs.Host.Indexers.FunctionIndexer+TriggerWrapper+d__7.MoveNext (Microsoft.Azure.WebJobs.Host, Version=3.0.37.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35: D:\a\_work\1\s\src\Microsoft.Azure.WebJobs.Host\Indexers\FunctionIndexer.cs:534)
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw (System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult (System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
at Microsoft.Azure.WebJobs.Host.Triggers.TriggeredFunctionBinding`1+d__8.MoveNext (Microsoft.Azure.WebJobs.Host, Version=3.0.37.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35: D:\a\_work\1\s\src\Microsoft.Azure.WebJobs.Host\Triggers\TriggeredFunctionBinding.cs:57)

Start with the orchestrator entry point using context.df.TaskAll(tasks), the reported orchestration and suborchestration IDs, and the full stack trace, especially DefaultPlatformInformation.UsesExternalPowerShellSDK and OrchestrationTriggerBinding. Done requires a reliable reproduction or diagnosis of the duplicate ExternalDurablePowerShellSDK key and confirmation that suborchestrations no longer fail the parent orchestration.

Written by the indexing model from the issue text.