The arpeggiator, sequencer, animator and LFOs (when set to MIDI-sync) are driven by either the internal clock or an external MIDI clock source.
If your 001 is configured to use an external MIDI clock source only, but there is no connected MIDI clock or the MIDI clock messages aren't being transmitted, this will result in the above elements not being able to work.
To change and fix this, go to the Settings->MIDI page and set Clock to 'Auto'. This will allow the above elements to be driven by the internal clock if no external MIDI clock is detected.