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Help required: To debug data-path/Links

Hi all,

S/W: ipnc_rdk_v3.2
Below are the uses cases I experimented.

Case 1(Default full feature usecase):  Capture-->cameraLink-->isp-->dup-->merge-->swosd-->ipcM3Out(vpss)-->ipcM3In(M3Video)-->Enc-->ipcBitsOut(M3video)-->ipcBitsIn(A8)
This path is up and I am able to stream the data using RTSP.

Case 2:
NullSrc(vpss)-->MyALGLink(vpss)-->ipcFramesOut(vpss)-->ipcFramesIn(A8)
I disabled Case 1 & using Case 2 alone. This Path is up and running. I am able to receive the Processed data in A8.

Case 3:
I
Combine case 1 & Case 2. i.e. want to work with both the path simultaneously.  But unfortunately Case 1 is stuck somewhere(case 2 is still working. I am receiving valid data ). 
To analyze the Problem, I added Prints in the the Data flow Path of Case 1.(i.e Prints added in Process() and Create() functions of each of the Links.) All Creates are done. But none of the process is called. 

Please guide me in this to debug the issue.

Thanks in advance :)