Hi; I am using Oxysoft to gather fNIRS measurements. When I connect my fNIRS cap in isolation, I am able to see the traces of HbO while recording:

However, when I connect my fNIRS in combination with LSL markers, I get a bunch of flat lines (even though I can see the cap is emitting light) while recording:

Has anyone encountered such an error? If so, how did you resolve it? Pictures areattached. 

 Thanks! 

- Jonathan