Domoticz

Hello
i have the problem when i set up a new Domoticz installation an i restore the working Database i get 1/4 of the devices.
is there somthing new ?
i have an rfxcom i thin the devices not show when is not inserted
but many devices from xiaomi not there
also the dummy devices with http aktion ar not present
the scenarien all there
all events ar there i dont understand the problem

i try two times of rpi istallations but always the same

i need hep