DTP failure when it is triggered in 2 process chains simultaneously

Hi Experts,

Good day.

There is a failure in the same DTP in 2 process chains HR and ECM which is triggered simultaneously in the time interval.The DTP request in HR is deleted automatically setting the status to RED and the process chain is interrupted where as the DTP in ECM is executed successfully.So i'm skipping the DTP step manually in HR chain to complete the loads.This DTP failure doesn't occur frequently..I'm unaware of this kind of issue.. any suggestions on this issue is appreciated.

Thank you.