Writing VBA Advanced Filter on Generic Mailbox

Good Afternoon,

I'm trying to use Outlook VBA / PowerShell COMObject to search for a specific email within a generic / shared mailbox that my team uses

When using VBA, this is my code.

Option Explicit
Sub MyEmailSearcher()
     Dim oApp As Outlook.Application
     Dim oNS As Outlook.NameSpace
     Dim oSM As Outlook.Recipient
     Dim oFolderInbox As Outlook.Folder
     Dim oSearch As Outlook.Search
     Dim oTable As Outlook.Table
     Dim oRow As Outlook.Row
     Dim sFilter As String
     Dim sSearch As String
     Dim check As Boolean

     Set oApp = New Outlook.Application
     Set oNS = oApp.GetNamespace("MAPI")

     Set oSM = oNS.CreateRecipient("softwaredeployment-deploiementdelogiciel")
     oSM.Resolve
     If oSM.Resolved Then
          Set oFolderInbox = oNS.GetSharedDefaultFolder(Recipient:=oSM, FolderType:=olFolderInbox)

          sSearch = "OpenSSL"
          sFilter = "urn:schemas:httpmail:subject LIKE '%" & sSearch & "%' OR " & _
"urn:schemas:httpmail:textdescription LIKE '%" & sSearch & "%'"
          Set oSearch = Application.AdvancedSearch(oFolderInbox, sFilter, True, "GOPDKTP_Search")
          Debug.Print (oSearch.Results.Count > 0)
     End If
End Sub

The oSearch variable does get initialized by Application.AdvancedSearch but it doesn't get any results.  PowerShell is basically the same except I initialize oApp as a COMObject of type Outlook.Application. When I run my PowerShell version, I get an error that simply says that the operation failed.  When I generate a detailed error output, I get this for the error info:

Exception :
Type : System.Runtime.InteropServices.COMException
ErrorCode : -2147023281
TargetSite :
Name : CheckThrowException
DeclaringType : System.Management.Automation.ComInterop.ComRuntimeHelpers, System.Management.Automation, Version=7.2.7.500, Culture=neutral, PublicKeyToken=31bf3856ad364e35
MemberType : Method
Module : System.Management.Automation.dll
Message : The operation failed.
Data : System.Collections.ListDictionaryInternal
Source : Microsoft Outlook
HResult : -2147023281
StackTrace :
at System.Management.Automation.ComInterop.ComRuntimeHelpers.CheckThrowException(Int32 hresult, ExcepInfo& excepInfo, ComMethodDesc method, Object[] args, UInt32 argErr)
at CallSite.Target(Closure , CallSite , ComObject , Object , Object , Boolean )
at System.Dynamic.UpdateDelegates.UpdateAndExecute4[T0,T1,T2,T3,TRet](CallSite site, T0 arg0, T1 arg1, T2 arg2, T3 arg3)
at System.Management.Automation.Interpreter.DynamicInstruction`5.Run(InterpretedFrame frame)
at System.Management.Automation.Interpreter.EnterTryCatchFinallyInstruction.Run(InterpretedFrame frame)
CategoryInfo : OperationStopped: (:) [], COMException
FullyQualifiedErrorId : System.Runtime.InteropServices.COMException
InvocationInfo :
ScriptLineNumber : 1
OffsetInLine : 2
HistoryId : -1
Line : $Result = $oApp.AdvancedSearch($oFolder,$sFilter,$true)
PositionMessage : At line:1 char:2
+ $Result = $outlook.AdvancedSearch($oFolder,$sFilter,$true)
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
CommandOrigin : Internal
ScriptStackTrace : at <ScriptBlock>, <No file>: line 1

About my environment

Outlook 365 Semi-Annual channel, version 16.0.0.14931

Exchange version 15.20.5813.18

Cached Mode is managed via GPO/Intune MDM, set to Enabled.

The message does exist in the target mailbox.  When I manually search in the Outlook app, no trouble finding it.

Any ideas?