diff --git a/lib_dec/lib_dec_fx.c b/lib_dec/lib_dec_fx.c
index dc58c5662c718a3451076bb26ff76264946e824d..f0702487cc5ee7db61af6c9d30b1f5e0e24d6ecb 100644
--- a/lib_dec/lib_dec_fx.c
+++ b/lib_dec/lib_dec_fx.c
@@ -3746,8 +3746,15 @@ ivas_error IVAS_DEC_ReadFormat(
         test();
         test();
         test();
+#ifdef NONBE_FIX_1297_SPAR_JBM_MEM_SAN
+        IF( ( NE_32( renderer_type_old, st_ivas->renderer_type ) && NE_32( renderer_type_old, RENDERER_DISABLE ) ) ||
+            ( st_ivas->ini_active_frame > 0 &&
+              ( ( ( EQ_32( st_ivas->ivas_format, MASA_FORMAT ) || EQ_32( st_ivas->ivas_format, MASA_ISM_FORMAT ) ) && EQ_32( st_ivas->renderer_type, RENDERER_BINAURAL_PARAMETRIC ) && NE_32( st_ivas->ism_mode, ISM_MASA_MODE_DISC ) ) ||
+                ( EQ_32( st_ivas->ivas_format, SBA_ISM_FORMAT ) && EQ_32( st_ivas->renderer_type, RENDERER_BINAURAL_FASTCONV ) && NE_32( st_ivas->ism_mode, ISM_SBA_MODE_DISC ) ) ) ) )
+#else
         IF( ( NE_32( renderer_type_old, st_ivas->renderer_type ) && NE_32( renderer_type_old, RENDERER_DISABLE ) ) ||
             ( st_ivas->ini_active_frame > 0 && ( EQ_32( st_ivas->ivas_format, MASA_FORMAT ) || EQ_32( st_ivas->ivas_format, MASA_ISM_FORMAT ) ) && EQ_32( st_ivas->renderer_type, RENDERER_BINAURAL_PARAMETRIC ) && NE_32( st_ivas->ism_mode, ISM_MASA_MODE_DISC ) ) )
+#endif
         {
             /* JBM: when granularity goes down (e.g. Discrete ISM with TD Obj Renderer -> ParamISM with binaural fastconv
             render what still fits in the new granularity */