diff --git a/lib_com/options.h b/lib_com/options.h
index 928f1a2f722508a745b442f4f68587028fb64212..16d3ed49e08ddf5b2405b47361ec270a025e2b58 100644
--- a/lib_com/options.h
+++ b/lib_com/options.h
@@ -166,6 +166,7 @@
 #define FIX_1319_STACK_SBA_DECODER                      /* VA: issue 1319: Optimize the definition of buffer lengths in the SBA decoder */
 #define NONBE_FIX_1261_MASA_EXT_META_JBM                /* Nokia: issue #1261: MASA metadata EXT output delay buffer init in JBM */
 #define NONBE_FIX_1143_MASA_BRSW                        /* Nok: Fix for issue 1143: MSAN use of uninitialized value in masa decoding to binaural with dtx bitrate switching and 5 % FER */
+#define NONBE_FIX_1220_OMASA_JBM_EXT_USAN               /* Nokia: fix issue 1220 OMASA EXT JBM USAN, also fix similar cases of free to avoid future problems */
 
 /* #################### End BASOP porting switches ############################ */
 
diff --git a/lib_dec/ivas_masa_dec.c b/lib_dec/ivas_masa_dec.c
index cc3ccb4dacb8ed734bfd68dcdf59978856240ea7..998437ca347524b05342a6dfb0e04dd75415995a 100644
--- a/lib_dec/ivas_masa_dec.c
+++ b/lib_dec/ivas_masa_dec.c
@@ -1322,7 +1322,12 @@ ivas_error ivas_masa_dec_reconfigure(
     ivas_total_brate = st_ivas->hDecoderConfig->ivas_total_brate;
     last_ivas_total_brate = st_ivas->hDecoderConfig->last_ivas_total_brate;
 
+#ifdef NONBE_FIX_1220_OMASA_JBM_EXT_USAN
+    /* Copy state to TC buffer if granularity matches and we are not in OMASA EXT rendering mode */
+    if ( st_ivas->hSpatParamRendCom != NULL && st_ivas->hSpatParamRendCom->slot_size == st_ivas->hTcBuffer->n_samples_granularity && st_ivas->hDecoderConfig->output_config != IVAS_AUDIO_CONFIG_EXTERNAL )
+#else
     if ( st_ivas->hSpatParamRendCom != NULL && st_ivas->hSpatParamRendCom->slot_size == st_ivas->hTcBuffer->n_samples_granularity )
+#endif
     {
         mvs2s( st_ivas->hSpatParamRendCom->subframe_nbslots, st_ivas->hTcBuffer->subframe_nbslots, MAX_JBM_SUBFRAMES_5MS );
         st_ivas->hTcBuffer->nb_subframes = st_ivas->hSpatParamRendCom->nb_subframes;
@@ -1343,6 +1348,16 @@ ivas_error ivas_masa_dec_reconfigure(
             return error;
         }
     }
+#ifdef NONBE_FIX_1220_OMASA_JBM_EXT_USAN
+    else if ( st_ivas->renderer_type == RENDERER_DISABLE || st_ivas->renderer_type == RENDERER_MONO_DOWNMIX || st_ivas->renderer_type == RENDERER_OMASA_MIX_EXT )
+    {
+        /* close all unnecessary parametric decoding and rendering */
+        ivas_dirac_dec_close_binaural_data( st_ivas->hDiracDecBin );
+        ivas_dirac_rend_close( &( st_ivas->hDirACRend ) );
+        ivas_spat_hSpatParamRendCom_close( &( st_ivas->hSpatParamRendCom ) );
+        ivas_dirac_dec_close( &( st_ivas->hDirAC ) );
+    }
+#else
     else if ( st_ivas->renderer_type == RENDERER_DISABLE || st_ivas->renderer_type == RENDERER_MONO_DOWNMIX )
     {
         if ( st_ivas->hDirAC != NULL )
@@ -1354,6 +1369,7 @@ ivas_error ivas_masa_dec_reconfigure(
             ivas_dirac_dec_close( &( st_ivas->hDirAC ) );
         }
     }
+#endif
     /* possible reconfigure is done later */
 
     /*-----------------------------------------------------------------*
diff --git a/lib_dec/ivas_mct_dec.c b/lib_dec/ivas_mct_dec.c
index 291032941438eafac4ce0ec886435c739e453001..c756f19f3c24c40691bc4d1e9799306776abb083 100644
--- a/lib_dec/ivas_mct_dec.c
+++ b/lib_dec/ivas_mct_dec.c
@@ -851,13 +851,17 @@ static ivas_error ivas_mc_dec_reconfig(
             ivas_masa_dec_close( &( st_ivas->hMasa ) );
             ivas_qmetadata_close( &st_ivas->hQMetaData );
 
+#ifndef NONBE_FIX_1220_OMASA_JBM_EXT_USAN
             if ( st_ivas->hDirAC != NULL )
             {
+#endif
                 ivas_dirac_rend_close( &( st_ivas->hDirACRend ) );
                 ivas_spat_hSpatParamRendCom_close( &( st_ivas->hSpatParamRendCom ) );
                 ivas_dirac_dec_close( &( st_ivas->hDirAC ) );
                 vbap_free_data( &( st_ivas->hVBAPdata ) );
+#ifndef NONBE_FIX_1220_OMASA_JBM_EXT_USAN
             }
+#endif
 
             /* init LS conversion if the renderer type asks for it */
             if ( st_ivas->renderer_type == RENDERER_MC && st_ivas->hLsSetUpConversion == NULL )
@@ -937,14 +941,18 @@ static ivas_error ivas_mc_dec_reconfig(
         ivas_masa_dec_close( &( st_ivas->hMasa ) );
         ivas_qmetadata_close( &st_ivas->hQMetaData );
 
+#ifndef NONBE_FIX_1220_OMASA_JBM_EXT_USAN
         if ( st_ivas->hDirAC != NULL )
         {
+#endif
             ivas_dirac_rend_close( &( st_ivas->hDirACRend ) );
             ivas_spat_hSpatParamRendCom_close( &( st_ivas->hSpatParamRendCom ) );
             ivas_dirac_dec_close( &( st_ivas->hDirAC ) );
 
             vbap_free_data( &( st_ivas->hVBAPdata ) );
+#ifndef NONBE_FIX_1220_OMASA_JBM_EXT_USAN
         }
+#endif
 
         if ( last_mc_mode == MC_MODE_MCT )
         {
@@ -1144,7 +1152,11 @@ static ivas_error ivas_mc_dec_reconfig(
                 }
             }
         }
+#ifdef NONBE_FIX_1220_OMASA_JBM_EXT_USAN
+        else if ( st_ivas->renderer_type == RENDERER_DISABLE )
+#else
         else if ( st_ivas->renderer_type == RENDERER_DISABLE && st_ivas->hDirAC != NULL )
+#endif
         {
             ivas_dirac_rend_close( &( st_ivas->hDirACRend ) );
             ivas_spat_hSpatParamRendCom_close( &( st_ivas->hSpatParamRendCom ) );