Heap Analysis - only first value of custom event properties is tracked

Question

export function useHeapAddEventCaseCode(caseData?: CaseEntity) {
  return useEffect(() => {
    if (caseData?.code) {
      // As a best practice, we recommend calling clearEventProperties before addEventProperties on every page
      window.heap.clearEventProperties() 
      window.heap.addEventProperties({ caseCode: caseData.code })
    }
  }, [caseData])
}

I'm using this effect on React SPA app in some page. Somehow it's only track first value, never see any other value even though I tried other case codes heap array in console.log has other caseCode but none of those is sent to heap analysis or not appear