Bug Report Still pops and clicks when using Focusrite interface. Why ?

I need Focusrite Pro 40 FireWire interface in order to record several audio tracks on my DAW digital audio workstation ( Sonar ). Although I have another audio interface which works fine with OBS, the mere presence of the focusrite interface on the system cause troubles, pops and clicks both in the audio return and on broadcast. Will I have to deactivate, uninstall focusrite every time I use OBS ? Is there another solution ? When will OBS understands ASIO interfaces ? Multiple channels ?