Merge branch 'Development' into B2026-039-Error-sequence-contains-no-elements

PROMS/Baseline/frmBaseline.cs

@@ -503,7 +503,7 @@ namespace Baseline
 			string[] fileList = Directory.GetFiles(fi.DirectoryName, patern);
 			// sort the list of file list
 			Array.Sort((string[])fileList);
-			return fileList.First(); // the PDF file that we what should be top of the list then.
+			return fileList.FirstOrDefault(); // the PDF file that we what should be top of the list then.
 		}
 
 		/// <summary>