Issue on Classic form with Grandtotal disable

HI Team, 
In classic view when i choose dont show grand totals then I am missing entire data.
The same flexmonster object works fine in v2.6.8 and not working in latest version v.2.35
 
Flexmonster object is given below , due to privacy i changed ACCT_NM and BILLING_ACCOUNT.
{"dataSource":{"type":"json","data":[{"MONITORED_VOL":{"caption":"Net Monitored Volume","type":"number"},"ACCT_NM":{"caption":"Billing Account Name","type":"string"},"BILLING_ACCOUNT":{"caption":"Billing Account Number","type":"string"},"I_NET_VOLUME_SUM":{"caption":"Net Performance Flag Sum","type":"number"}},{"ACCT_NM":"ABCDEF","BILLING_ACCOUNT":"123456","I_NET_VOLUME_SUM":19,"MONITORED_VOL":20}]},"slice":{"rows":[{"uniqueName":"ACCT_NM","caption":"Billing Account Name"},{"uniqueName":"BILLING_ACCOUNT","caption":"Billing Account Number"}],"columns":[{"uniqueName":"[Measures]"}],"measures":[{"uniqueName":"P_NET_PERFORMANCE","formula":"'I_NET_VOLUME_SUM'/'MONITORED_VOL'","caption":"Net Performance %","format":"%percent"}]},"options":{"grid":{"type":"classic","showGrandTotals":"off"},"caseSensitiveMembers":true},"formats":[{"name":"%percent","decimalPlaces":2,"isPercent":true}],"version":"2.9.35","creationDate":"2022-10-19T07:21:53.404Z"}