Update src/logging.fallback.ps1

src/logging.fallback.ps1

@@ -289,46 +289,71 @@ function global:Write-LogHybrid {
     param(
         [Parameter(Mandatory = $true)]
         [string]$Message,
+
         [ValidateSet("Info", "Warning", "Error", "Success", "General")]
         [string]$Level = "Info",
+
         [string]$TaskCategory = "GeneralTask",
+
         [switch]$LogToEvent,
+
         [string]$EventSource = "SVSMSP_Module",
+
         [string]$EventLog    = "SVSMSP Events",
+
+        # New feature: only used by Write-LogHelper (fallback) unless the primary logger supports it
         [ValidateSet('Repair', 'Unique', 'Follow')]
         [string]$EventLogConflictPolicy = 'Repair',
+
         [int]$CustomEventID,
+
         [string]$LogFile,
+
         [switch]$PassThru,
+
         [ValidateSet("Black","DarkGray","Gray","White","Red","Green","Blue","Yellow","Magenta","Cyan")]
         [string]$ForegroundColorOverride
     )
 
     $formatted = "[$Level] [$TaskCategory] $Message"
 
+    # Full parameter set we *might* send
     $invokeParams = @{
-        Message                = $Message
-        Level                  = $Level
-        TaskCategory           = $TaskCategory
-        LogToEvent             = $LogToEvent
-        EventSource            = $EventSource
-        EventLog               = $EventLog
-        EventLogConflictPolicy = $EventLogConflictPolicy
+        Message      = $Message
+        Level        = $Level
+        TaskCategory = $TaskCategory
+        LogToEvent   = $LogToEvent
+        EventSource  = $EventSource
+        EventLog     = $EventLog
     }
 
     if ($PSBoundParameters.ContainsKey('CustomEventID')) { $invokeParams.CustomEventID = $CustomEventID }
     if ($PSBoundParameters.ContainsKey('LogFile'))       { $invokeParams.LogFile = $LogFile }
     if ($PassThru)                                       { $invokeParams.PassThru = $true }
 
+    # Only include the new param if the target supports it
+    $fallbackParams = $invokeParams.Clone()
+    $fallbackParams.EventLogConflictPolicy = $EventLogConflictPolicy
+
     if ($PSBoundParameters.ContainsKey('ForegroundColorOverride')) {
         Write-Host $formatted -ForegroundColor $ForegroundColorOverride
-        if (Get-Command Write-Log -ErrorAction SilentlyContinue) { Write-Log @invokeParams }
-        else { Write-LogHelper @invokeParams }
     }
-    else {
-        if (Get-Command Write-Log -ErrorAction SilentlyContinue) { Write-Log @invokeParams }
-        else { Write-LogHelper @invokeParams }
+
+    $primary = Get-Command Write-Log -ErrorAction SilentlyContinue
+    if ($primary) {
+        # Filter to only parameters supported by Write-Log
+        $allowed = $primary.Parameters.Keys
+        $filtered = @{}
+        foreach ($k in $invokeParams.Keys) {
+            if ($allowed -contains $k) { $filtered[$k] = $invokeParams[$k] }
+        }
+        Write-Log @filtered
+        return
     }
+
+    # Fallback logger supports EventLogConflictPolicy
+    Write-LogHelper @fallbackParams
 }
 
+
 #endregion Public: Write-LogHybrid