In SDP(Service Data Provider) search and date filters are not working simultaneously

Summary

In SDP I have enabled Search on one field and the date filter on another field, When I apply date filter, the search wont work after that & even after resetting the date fields

Version

19.4.3.2

Code Snippet

=====> Search Related Code <===

 "op": "$or",
 "criteria": [
  {
   "op": "$co",
   "attribute": "BackendCustomerName_c",
   "value": "{{ $variables.searchVar }}"
  },
  {
   "op": "$co",
   "attribute": "RecordName",
   "value": "{{ $variables.searchVar }}"
  }
 ]
}

==> For Date filter wrote a button action chain on custom fields <==
{
 "filterCriterion": {
  "criteria": [
   "{{ $page.variables.orderfromdate }}",
   "{{ $page.variables.ordertodate }}"
  ],
  "op": "$and"
 }
}