issue switching from phono to computer

Having an issue where the following occurs. Channel 2 is switched to phono (after just finishing playing a record) and a Serato track is playing on Channel 1. Upon switching Channel 2 back to the computer to play Serato again, the track playing on Channel 2 cuts out for a second. The sound completely drops out. It is very frustrating because I often play both digital and analog in the same setting. Anyone else experiencing this? Any suggestions? I purchased DeoxIT if the switch itself is a problem. Haven't tried to spray it yet, though. Thanks in advance.