confliction between ispLink and deiLink

hi,

  We now work on IPNC3.5,we find there is confliction exists between ispLink and deiLink,

  if we config ISS in continuous mode,run the links blew:

       cameraLink -> deiLink -> swMsLink -> displayLink , output image is right ,it works well;

  but if we config ISS in memory - to - memory mode,run the links blew:

      cameraLink -> ispLink -> deiLink -> swMsLink -> displayLink,output image is wrong.

I think there may be some deference between the output of cameraLink and ispLink in these two case(notice that they all output YUV420 format)

or  there may be confliction between ispLink and deiLink.

 so

could you offer me a demo that contains ispLink and deiLink??? I need this most,or can you tell me some advices about this?