diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index c1e56d48d267011ea9b9139b9f6c0f49b255ae6f..7a9b272c5b04fcc48e4fcbc6cb7ec5e7f23afdb3 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -491,7 +491,7 @@ stages:
 
     ### compare the two csv files for regressions
     - regressions_found=0
-    - python3 scripts/basop_check_for_changes_in_testcases.py --xml_report $XML_REPORT_BRANCH $CSV_MAIN $CSV_BRANCH || regressions_found=$?
+    - python3 scripts/basop_check_for_changes_in_testcases.py --xml_report $XML_REPORT_BRANCH $CSV_BRANCH $CSV_MAIN || regressions_found=$?
 
     - if [ $exit_code -eq 1 ]; then echo "Differences encountered"; exit_code=$EXIT_CODE_NON_BE; fi
     - if [ $zero_errors_branch != 1 ]; then echo "Run errors encountered!"; exit_code=$EXIT_CODE_NON_BE; fi
diff --git a/lib_dec/ivas_core_dec.c b/lib_dec/ivas_core_dec.c
index 8d88074a835df6e35864fd37d80a0641b7551910..9aaddb2fb743d5160ff59ac9bfa251c15f4ba76d 100644
--- a/lib_dec/ivas_core_dec.c
+++ b/lib_dec/ivas_core_dec.c
@@ -782,6 +782,7 @@ ivas_error ivas_core_dec_fx(
         /* for inactive frames with mono output, copy and (if necessary) downmix buffers */
         ELSE IF( EQ_16( hCPE->nchan_out, 1 ) )
         {
+            Word16 shift1, shift2;
             sts[0] = hCPE->hCoreCoder[0];
             sts[1] = hCPE->hCoreCoder[1];
 
@@ -800,6 +801,15 @@ ivas_error ivas_core_dec_fx(
                 move16();
                 sts[1]->hHQ_core->Q_old_wtda = sub( 15, sts[1]->hHQ_core->exp_old_out );
                 move16();
+
+                shift1 = norm_arr( sts[0]->hHQ_core->old_out_fx, L_FRAME48k );
+                shift2 = norm_arr( sts[1]->hHQ_core->old_out_fx, L_FRAME48k );
+                scale_sig( sts[0]->hHQ_core->old_out_fx, L_FRAME48k, shift1 );
+                scale_sig( sts[1]->hHQ_core->old_out_fx, L_FRAME48k, shift2 );
+                sts[0]->hHQ_core->Q_old_wtda = add( sts[0]->hHQ_core->Q_old_wtda, shift1 );
+                sts[1]->hHQ_core->Q_old_wtda = add( sts[1]->hHQ_core->Q_old_wtda, shift2 );
+                move16();
+                move16();
             }
         }