diff --git a/lib_com/options.h b/lib_com/options.h
index 0e313e5e932308543712e411f43df271b62bdf79..532d57e4e56feb6033015680ad3e82c692d3fd9a 100644
--- a/lib_com/options.h
+++ b/lib_com/options.h
@@ -112,6 +112,7 @@
 #define FIX_2250_LARGE_DIFFERENCES_BETWEEN_BASOP_AND_FLOAT  /* Dolby: Issue 2250:  random vector generation in GenShapedSHBExcitation() */
 #define FIX_2338_HARM_GSC_GAIN_COMP                     /* VA: basop issue 2338: harmonization of band gain computation for both EVS and IVAS */
 #define FIX_BASOP_2317_UNINIT_VALUE_IN_STEREO_CNG       /* Eri: Basop issue 2317: Uninitialized value read in case of DTX and BW switching   */
+#define FIX_1283_STEREO_DFT_COLLAPSE                    /* FhG: float issue 1283: fix for critical issue with DFT stereo core coder */
 
 /* ##################### End NON-BE switches ########################### */
 
diff --git a/lib_enc/cod_tcx_fx.c b/lib_enc/cod_tcx_fx.c
index 6c2f6100be95d2cf7bc54cab31aedf746ad3690d..922ae177a6f313b5f11331b8dbf9e42be1537856 100644
--- a/lib_enc/cod_tcx_fx.c
+++ b/lib_enc/cod_tcx_fx.c
@@ -621,7 +621,13 @@ void ShapeSpectrum_ivas_fx(
     }
 
     test();
+    test();
+    test();
+#ifndef FIX_1283_STEREO_DFT_COLLAPSE
     IF( LE_32( total_brate, ACELP_13k20 ) && EQ_16( st->bwidth, SWB ) )
+#else
+    IF( ( LE_32( total_brate, ACELP_13k20 ) || ( LE_32( st->element_brate, IVAS_16k4 ) && EQ_16( st->element_mode, IVAS_CPE_DFT ) ) ) && EQ_16( st->bwidth, SWB ) )
+#endif
     {
         max_low_pre = 0;
         move32();
@@ -697,7 +703,13 @@ void ShapeSpectrum_ivas_fx(
 
     /* reduce the peaks in the IGF region, to make life of the core-coder easier... */
     test();
+    test();
+    test();
+#ifndef FIX_1283_STEREO_DFT_COLLAPSE
     IF( LE_32( total_brate, ACELP_13k20 ) && EQ_16( st->bwidth, SWB ) )
+#else
+    IF( ( LE_32( total_brate, ACELP_13k20 ) || ( LE_32( st->element_brate, IVAS_16k4 ) && EQ_16( st->element_mode, IVAS_CPE_DFT ) ) ) && EQ_16( st->bwidth, SWB ) )
+#endif
     {
         Word16 sf_width;
         Word16 dist_low, dist_high;
diff --git a/lib_enc/ivas_sce_enc_fx.c b/lib_enc/ivas_sce_enc_fx.c
index ec539b738321d0cedd7b19d0d0ae80c5347b74ba..3e62c720eab51e3a7fce1bd9a0da5055c5c06482 100644
--- a/lib_enc/ivas_sce_enc_fx.c
+++ b/lib_enc/ivas_sce_enc_fx.c
@@ -473,6 +473,10 @@ ivas_error create_sce_enc_fx(
     }
 
     st->total_brate = hSCE->element_brate; /* dummy initialization for getting right pointers initialization of input buffers in init_coder_ace_plus() */
+#ifdef FIX_1283_STEREO_DFT_COLLAPSE
+    st->element_brate = -1;
+    move32();
+#endif
     st->mct_chan_mode = MCT_CHAN_MODE_REGULAR;
     move32();
     move32();