With SCIP version 8, solving QCP problem returns the warning messages:
WARNING: Original variable <var9> not released when freeing SCIP problem <Dsp>.
WARNING: Original variable <var8> not released when freeing SCIP problem <Dsp>.
WARNING: Original variable <var7> not released when freeing SCIP problem <Dsp>.
WARNING: Original variable <var6> not released when freeing SCIP problem <Dsp>.
WARNING: Original variable <var9> not released when freeing SCIP problem <Dsp>.
WARNING: Original variable <var8> not released when freeing SCIP problem <Dsp>.
WARNING: Original variable <var7> not released when freeing SCIP problem <Dsp>.
WARNING: Original variable <var6> not released when freeing SCIP problem <Dsp>.
WARNING: Original variable <var9> not released when freeing SCIP problem <Dsp>.
WARNING: Original variable <var8> not released when freeing SCIP problem <Dsp>.
WARNING: Original variable <var7> not released when freeing SCIP problem <Dsp>.
WARNING: Original variable <var6> not released when freeing SCIP problem <Dsp>.
With SCIP version 8, solving QCP problem returns the warning messages: