using different callsigns on different machines at the same time for pre-contest operation, e.g. different EA6/homecalls
having the "Options | Disable log synchroization on network" checked
still, there were occurences where QSOs from different machines were synchronized over the network. This caused quite some confusion since QSOs from different EA6/homecalls logs got mixed.
The following would be very helpful
Disable log synchronization completely when detecting different calls in the network. As it is being done when detecting different contest types in the network.
There are two options (1) "Interfaces configuration | protocol advanced settings | Synchronization (in/out)" and (2) "Options | Disable log synchroization on network". It is not clear which setting takes precedence over which.