diff --git a/lib_com/options.h b/lib_com/options.h
index dc260b61c0a674c01c6b9c13c81c4d6af628879e..e1bc66274dacf8eb163ac4403300260dd75064d0 100644
--- a/lib_com/options.h
+++ b/lib_com/options.h
@@ -195,6 +195,7 @@
 #define NONBE_1246_INF_COHERENCE_IN_HIGH_LEVEL_DTX      /* Ericsson: Issue 1246: High level input which triggers DTX can lead to numerical overflow in coherence calculation */
 #define TMP_FIX_1119_SPLIT_RENDERING_VOIP               /* FhG: Add error check for unsupported config: split rendering with VoIP mode */
 #define FIX_1113_EXTREND_ISAR                           /* FhG: issue 1113: fix external renderer asserts for FOA/HOA2 and CLDFB config */
+#define NONBE_1203_MDCT2DFT_SWITCHING                   /* VA: issue 1203: fix severe artifacts during MDCT to DFT stereo switching when MDCT ITD is not used */
 #define NONBE_1122_JBM_FIX_PLAYOUT_DELAY_IN_DTX         /* FhG: Avoid JBM ignoring safety margin and setting playout delay to 0 during DTX */
 #define NONBE_1122_KEEP_EVS_MODE_UNCHANGED              /* FhG: Disables fix for issue 1122 in EVS mode to keep BE tests green. This switch should be removed once the 1122 fix is added to EVS via a CR.  */
 #define FIX_938_COMPILER_WARNING                        /* FhG: Fix compiler warning in ivas_mdct_core_reconstruct() */
diff --git a/lib_enc/ivas_stereo_dft_td_itd.c b/lib_enc/ivas_stereo_dft_td_itd.c
index 5f55611fd0d0ed79fcaba04c782d735f2602a6ea..25ea30c35b217ad4bcec75c92767d9844e2345c2 100644
--- a/lib_enc/ivas_stereo_dft_td_itd.c
+++ b/lib_enc/ivas_stereo_dft_td_itd.c
@@ -399,6 +399,9 @@ void stereo_td_itd_mdct_stereo(
     float bin_nrgR[STEREO_DFT_N_32k_ENC];
     float DFT[CPE_CHANNELS][STEREO_DFT_N_MAX_ENC];
     STEREO_MDCT_ENC_DATA_HANDLE hStereoMdct;
+#ifdef NONBE_1203_MDCT2DFT_SWITCHING
+    int16_t dft_ovl;
+#endif
 
     if ( hCPE->hStereoMdct != NULL && hCPE->hStereoMdct->hItd != NULL )
     {
@@ -427,6 +430,17 @@ void stereo_td_itd_mdct_stereo(
         stereo_td_itd( hStereoMdct->hItd, NULL, 1, hStereoMdct->hDft_ana->dft_ovl, hCPE->hCoreCoder, input_frame, hCPE->input_mem );
 #endif
     }
+#ifdef NONBE_1203_MDCT2DFT_SWITCHING
+    else if ( hCPE->input_mem[0] != NULL )
+    {
+        dft_ovl = STEREO_DFT_OVL_MAX * input_frame / L_FRAME48k;
+
+        for ( i = 0; i < CPE_CHANNELS; i++ )
+        {
+            mvr2r( hCPE->hCoreCoder[i]->input + input_frame - dft_ovl, hCPE->input_mem[i], dft_ovl );
+        }
+    }
+#endif
 
     return;
 }
diff --git a/lib_enc/ivas_stereo_switching_enc.c b/lib_enc/ivas_stereo_switching_enc.c
index 27a17e048b7a7c3e222eb22262060654f09434c2..862eea204b749e6faf73f0aecb93b274bc3d710a 100644
--- a/lib_enc/ivas_stereo_switching_enc.c
+++ b/lib_enc/ivas_stereo_switching_enc.c
@@ -625,6 +625,9 @@ void stereo_switching_enc(
     dft_ovl = STEREO_DFT_OVL_MAX * input_frame / L_FRAME48k;
 
     /* update DFT analysis overlap memory */
+#ifdef NONBE_1203_MDCT2DFT_SWITCHING
+    /* note: in MDCT stereo, the update is done in stereo_td_itd_mdct_stereo() */
+#endif
     if ( hCPE->element_mode > IVAS_CPE_DFT && hCPE->input_mem[0] != NULL && hCPE->element_mode != IVAS_CPE_MDCT )
     {
         for ( n = 0; n < CPE_CHANNELS; n++ )