did you find a solution for this?
What about a calculation for each measure to remove the zero value.
If sum([DLP_HS])>0 or sum([DLP_HS])<0 then sum([DLP_HS]) end
and If sum([DLP_LS])>0 or sum([DLP_LS])<0 then sum([DLP_LS]) end
null would now be returned for those zero values.
In my testing the zero's are still there for the bars that appear with values for the other Div id - they are just at the top and not at the bottom.
Let us know how that works and if possible please utilize this sample data in a workbook. Packaged workbooks and flows: when, why, how