an issue with DTC::ReleaseAllBuffers ?

[pavel1murat]

it looks that the following code snippet results in reading of only one event,
and the reads following the call to DTC::ReleaseAllBuffers return an empty vector, or "no data"

DTCLib::DTC* _dtc(...);
// .. dtc intialization omitted
bool match_ts = false;
std::vector<std::unique_ptr<DTCLib::DTC_SubEvent>> subevents;
subevents = _dtc->GetSubEventData(DTC_EventWindowTag(0) ,match_ts);
_dtc->ReleaseAllBuffers(DTC_DMA_Engine_DAQ);
for (int i=1; i<10; i++) {
  subevents = _dtc->GetSubEventData(DTC_EventWindowTag(i),match_ts);
}