When controlling one of the Virtual radios via the CAT control by FLdigi or VarAC asking for a frequency change and you have another receiver selected, the selected receiver will change mode to match the one under control.  I had RX1 on CW mode and RX3 set up for VarAC.  (USB).  Then I QSYed off the calling frequency with RX3 and the mode on RX1 changed to USB, even though RX3 was the one commanded to change.  This also happened with FLdigi  using RX2.
   Any ideas, Software bug or operator setup error?  When the RX selection is on the commanded RX, no problem.