He doesn’t recognize Mac with Ob in machine

Good morning.
Something strange has happened to me.
The analog (rytm and four) no longer recognizes me if I have selected only OB in preferences, if I change to midi-usb if.
Osc El Capitán and update Elektron machines)
Before it worked without problem.
Any solution? It happens to someone else? Greetings and thanks.

It is not the Analog’s configuration, because in another Mac it works correctly.