No arpeggiator super 6

HI all. Only had a few hours with the synth but I can’t get the arp to do anything…well virtually nothing, it spits out a note after a while, almost like its running at 3 bpms or something but then doesn’t do anything else. I’ve upgraded to os1.2 but I don’t know if the arp was working before or not. It works when I send an external source, but it’s not in time. Any help would be much appreciated