From b025898d7bc481e201c201f7134cf7e93528b992 Mon Sep 17 00:00:00 2001
From: Matt Nadareski <mnadareski@outlook.com>
Date: Fri, 20 Dec 2024 21:35:49 -0500
Subject: [PATCH] Fix output name null edge case

---
 CHANGELIST.md                            | 1 +
 MPF.Frontend/ViewModels/MainViewModel.cs | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/CHANGELIST.md b/CHANGELIST.md
index 9abd9abe..e885a173 100644
--- a/CHANGELIST.md
+++ b/CHANGELIST.md
@@ -105,6 +105,7 @@
 - Remove reference to removed file
 - Add README files for two libraries
 - Simplify output name assembly logic
+- Fix output name null edge case
 
 ### 3.2.4 (2024-11-24)
 
diff --git a/MPF.Frontend/ViewModels/MainViewModel.cs b/MPF.Frontend/ViewModels/MainViewModel.cs
index edba3b58..ecf02047 100644
--- a/MPF.Frontend/ViewModels/MainViewModel.cs
+++ b/MPF.Frontend/ViewModels/MainViewModel.cs
@@ -1421,7 +1421,7 @@ namespace MPF.Frontend.ViewModels
             {
                 // If the previous path is exactly the default path and last filename
                 if (lastDirectory.EndsWith(Path.Combine(defaultOutputPath, lastFilename)))
-                    lastDirectory = Path.GetDirectoryName(lastDirectory);
+                    lastDirectory = Path.GetDirectoryName(lastDirectory) ?? string.Empty;
 
                 // Create the output path
                 if (lastDirectory == defaultOutputPath)