Streaming Process chains-BW4HANA

Hi Experts,

I am facing an issue in the Process chains. My process chain is set as Streaming in Real Time for every 1minute and I see it is not executing that. we are on SAP BW4HANA 2.0 SP5

What all could be the probable reasons for this. If some one has faced a similar issue . can someone help.

Thanks in Advance.