diff --git a/src/Compilers/Core/CodeAnalysisTest/Analyzers/AnalyzerFileReferenceTests.cs b/src/Compilers/Core/CodeAnalysisTest/Analyzers/AnalyzerFileReferenceTests.cs
index 5e7cc365e2287..539fa4c8bcb6b 100644
--- a/src/Compilers/Core/CodeAnalysisTest/Analyzers/AnalyzerFileReferenceTests.cs
+++ b/src/Compilers/Core/CodeAnalysisTest/Analyzers/AnalyzerFileReferenceTests.cs
@@ -323,7 +323,7 @@ public void AssemblyLoading_ReferencesLaterFakeCompiler_EndToEnd_CSharp()
                 """, writer.ToString());
         }
 
-        [ConditionalFact(typeof(IsEnglishLocal))]
+        [ConditionalFact(typeof(IsEnglishLocal), AlwaysSkip = "https://github.com/dotnet/roslyn/issues/63856")]
         public void DuplicateAnalyzerReference()
         {
             var directory = Temp.CreateDirectory();
diff --git a/src/Compilers/Core/Portable/CommandLine/CommandLineArguments.cs b/src/Compilers/Core/Portable/CommandLine/CommandLineArguments.cs
index 28c916e166af2..51d6d2a0a3626 100644
--- a/src/Compilers/Core/Portable/CommandLine/CommandLineArguments.cs
+++ b/src/Compilers/Core/Portable/CommandLine/CommandLineArguments.cs
@@ -527,7 +527,8 @@ internal void ResolveAnalyzersFromArguments(
                     }
                     else
                     {
-                        diagnostics.Add(new DiagnosticInfo(messageProvider, messageProvider.WRN_DuplicateAnalyzerReference, reference.FilePath));
+                        // https://github.com/dotnet/roslyn/issues/63856
+                        //diagnostics.Add(new DiagnosticInfo(messageProvider, messageProvider.WRN_DuplicateAnalyzerReference, reference.FilePath));
                     }
                 }
                 else