diff --git a/lib_com/options.h b/lib_com/options.h
index 5bb7f4c79228fc1dc04742aa050b2e7d85dc1d49..b9dbd6e1f90c48e9be52848dec52eaeb49c78b3a 100755
--- a/lib_com/options.h
+++ b/lib_com/options.h
@@ -185,6 +185,7 @@
 #define FIX_355_REFACTOR_PARAMBIN_TO_5MS                /* Nokia: Fixes issue 355 by refactoring parametric binauralizer code to 5 ms mode */
 #define FIX_411_EVS_BE_TESTS_ON_WINDOWS_FAILING         /* Eri: Fix incorrect use of stack variable used for channel aware config file */
 #define COMBINED_FORMAT_SIGNALING                       /* VA: Introduce a signaling bit for combined format coding */
+#define FIX_446_STEREO_DMX_CRASH                        /* FhG: fix discrepancy with EVS code that could cause crashes in rare cases */
 
 #define FIX_386_CORECODER_RECONFIG_2                    /* VA: Issue 386: Resolve remaining ToDo comments in CoreCoder reconfig. */
 #define FIX_440_PARAM_ISM_DIR_NOISE                     /* FhG: Issue 440: Fix directional background noise becoming diffuse in ParamISM */
@@ -194,11 +195,10 @@
 #define FIX_447_PARAMBIN_MASA_REGU_FAC                  /* Nokia: Issue 447: Fix issue by adjusting regularization factor minimum value. */
 #define FIX_441_SBA_PARAMBIN_GAINS                      /* Nokia: Fix issue 441 by changing gains in SBA path of parametric binauralizer */
 
-
 #define HODIRAC                                         /* FhG: Sector-based HO-DirAC method for SBA at high bitrates */
 
 #ifdef HODIRAC
-#define SPAR_TUNING										/* Dlb: tune SPAR for better quality */
+#define SPAR_TUNING                                     /* Dlb: tune SPAR for better quality */
 #define HODIRAC_FIX_BR_SWITCHING_DTX
 #endif
 
diff --git a/lib_enc/ext_sig_ana.c b/lib_enc/ext_sig_ana.c
old mode 100644
new mode 100755
index 80e652cf07c987e48b36c93a601650838efc12a3..f79fbb5f95f2def7067e134ead944591d9d6882a
--- a/lib_enc/ext_sig_ana.c
+++ b/lib_enc/ext_sig_ana.c
@@ -444,10 +444,19 @@ void core_signal_analysis_high_bitrate(
                 ProcessIGF( st, hTcxEnc->spectrum[frameno], hTcxEnc->spectrum[frameno], powerSpec, transform_type[frameno] == TCX_20, frameno, 0, vad_hover_flag );
             }
 
+#ifndef FIX_446_STEREO_DMX_CRASH
             /* Copy memory */
             mvr2r( lsp_new, st->lspold_enc, M );
+#endif
         }
     }
+#ifdef FIX_446_STEREO_DMX_CRASH
+    if ( st->element_mode != IVAS_CPE_MDCT )
+    {
+        /* Copy memory */
+        mvr2r( lsp_new, st->lspold_enc, M );
+    }
+#endif
 
     return;
 }