Arp/Seq's button on Minifreak does not trigger on Minifreak V

[olimpo]

Hello, Minifreak is linked to Minifreak V, but I can't play nor stop the Arpeggiator/Sequencer in Minifreak V.
The hardware works well because when I set Direct Monitor on my Interface, Play/Stops buttons on the Minifreak work and also Minifreak V Stop/Play buttons work well.
What can be wrong?, many thanks.