I presume you have the V2 configured for wide band and for Innovate? It is remotely possible that if at any stage the V2 attempts to communicate with a different manufacturer's WO2, it may end up sending a byte sequence that could be interpreted by the LC-1 as an "AFR reset" command. I don't know what that command would be so I can't say for sure if anything the V2 attempts to send (to any another WO2) could cause that.
Regardless, if you have the V2 set to "Innovate" prior to connecting to the LC-1 the V2 should never send anything except the "free air calibrate" command and then only when the user elects to do that.
Regards
Paul