diff --git a/lib_com/options.h b/lib_com/options.h
index 68dbb25b4eb12b438a7c5b3197e05cf1fdf9c41a..d0c68125639c9dfa2a281637dd14e4804437c4fd 100644
--- a/lib_com/options.h
+++ b/lib_com/options.h
@@ -188,6 +188,7 @@
 
 
 #define NONE_BE_FIX_816_LFE_PLC_FLOAT                   /* DLB: issue 816: reduce required precision to float for LFE-PLC*/
+#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 NON-BE switches ########################### */
 
diff --git a/lib_dec/ivas_masa_dec.c b/lib_dec/ivas_masa_dec.c
index 544f3d36bfba6da5fdde037eda6ba8a87bdcafe9..879af3a1a2e41ae28b47de4c038879add4de0fa5 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 0c284a24366282fab421f0c224fb507d024a68e7..81b800de8eeadd3f9454e054a3e04a2694caec8e 100644
--- a/lib_dec/ivas_mct_dec.c
+++ b/lib_dec/ivas_mct_dec.c
@@ -849,13 +849,17 @@ 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 )
@@ -935,14 +939,18 @@ 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 )
         {
@@ -1177,7 +1185,11 @@ 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 ) );