diff --git a/lib_com/options.h b/lib_com/options.h
index 6bfe63675545869d26b63960f5671f6c88f9fb20..1225701bd9df3f7b4213b962da08794adde7a617 100644
--- a/lib_com/options.h
+++ b/lib_com/options.h
@@ -175,6 +175,7 @@
 #define FIX_1574_EFAP_CODE_LINT                         /* FhG: issue 1574: Code quality fixes in ivas_efap.c */
 #define FIX_FLOAT_1569_REND_RENDER_CONFIG_CHECKS        /* Nokia: float issue 1569: fix render config checks in renderer */
 #define FIX_1571_BFI_COPY_ARRAY_CORRECT_LEN             /* FhG: issue 1571: use correct channel signal length for copying signal to buffer */
+#define FIX_1576_LCLD_CRASH_DIFFERENT_CODEC_ISAR_FRAME_SIZE  /* Dolby: float issue 1576: fix for crash in LCLD mode when codec frame size is less than isar frame size */
 
 /* ##################### End NON-BE switches ########################### */
 
diff --git a/lib_isar/lib_isar_pre_rend.c b/lib_isar/lib_isar_pre_rend.c
index adc175a91c3c4c101e6db9ec3987a668de96f566..6ba81ec709e2ec53d95eab28aad6965fe04df78e 100644
--- a/lib_isar/lib_isar_pre_rend.c
+++ b/lib_isar/lib_isar_pre_rend.c
@@ -153,10 +153,29 @@ ivas_error ISAR_PRE_REND_open(
         }
         else
         {
+#ifndef FIX_1576_LCLD_CRASH_DIFFERENT_CODEC_ISAR_FRAME_SIZE
             int16_t iNumBlocksPerFrame;
             iNumBlocksPerFrame = ( CLDFB_NO_COL_MAX * pSplitRendConfig->codec_frame_size_ms ) / 20;
+#else
+            int16_t iNumBlocksPerFrame, iNumLCLDIterationsPerFrame;
+            if ( pSplitRendConfig->codec_frame_size_ms > 0 )
+            {
+                iNumLCLDIterationsPerFrame = (int16_t) pSplitRendConfig->isar_frame_size_ms / ( pSplitRendConfig->codec_frame_size_ms );
+                iNumLCLDIterationsPerFrame = max( 1, iNumLCLDIterationsPerFrame );
+                iNumBlocksPerFrame = CLDFB_NO_COL_MAX * pSplitRendConfig->codec_frame_size_ms / 20;
+            }
+            else
+            {
+                iNumLCLDIterationsPerFrame = 1;
+                iNumBlocksPerFrame = CLDFB_NO_COL_MAX;
+            }
+#endif
 
+#ifndef FIX_1576_LCLD_CRASH_DIFFERENT_CODEC_ISAR_FRAME_SIZE
             if ( ( error = isar_splitBinLCLDEncOpen( &hSplitBinRend->hSplitBinLCLDEnc, output_Fs, BINAURAL_CHANNELS, isar_get_lcld_bitrate( pSplitRendConfig->splitRendBitRate, hSplitBinRend->multiBinPoseData.poseCorrectionMode ), iNumBlocksPerFrame, 1 ) ) != IVAS_ERR_OK )
+#else
+            if ( ( error = isar_splitBinLCLDEncOpen( &hSplitBinRend->hSplitBinLCLDEnc, output_Fs, BINAURAL_CHANNELS, isar_get_lcld_bitrate( pSplitRendConfig->splitRendBitRate, hSplitBinRend->multiBinPoseData.poseCorrectionMode ), iNumBlocksPerFrame, iNumLCLDIterationsPerFrame ) ) != IVAS_ERR_OK )
+#endif
             {
                 return error;
             }