Flow Continuously Running

I have a flow that won’t stop running from the moment I launch my page. Here is the console:

It was running correctly yesterday, but seems to have just started doing this - the only edit I have made is to have added a parameter and to have extended a condition.

Is there something I can look for to find out why this is happening?

It isn’t set to autorun, and it doesn’t call itself. The code it produces is below.

Best wishes,
Antony.

		<script is="dmx-flow" id="flow_lock_event" type="text/dmx-flow">{
  meta: {
    $param: [
      {type: "text", name: "activity_id"},
      {type: "text", name: "activity_event_id"},
      {type: "text", name: "this_user_id"}
    ]
  },
  exec: {
    steps: {
      condition: {
        if: "{{use_locks.value==1}}",
        then: {
          steps: [
            {
              serverConnect: {
                url: "dmxConnect/api/activities/lock_event.php",
                params: {
                  activity_id: "{{$param.activity_id}}",
                  activity_event_id: "{{$param.activity_event_id}}"
                },
                name: "sc_lock_event",
                output: true
              }
            },
            {
              condition: {
                if: "{{(sc_lock_event.data.returned_values.boolean_value==1)&&(sc_lock_event.data.returned_values.id_value!=$param.this_user_id)}}",
                then: {
                  steps: {
                    run: {
                      action: "{{is_locked.setValue(1);is_locked_by.setValue(sc_lock_event.data.returned_values.id_value);view_edit.setValue('view');user_message.setValue(sc_lock_event.data.returned_values.text_value);user_message_title.setValue('Event is Being Edited');m_user_message.show()}}"
                    }
                  }
                },
                else: {
                  steps: [
                    {
                      run: {action: "{{view_edit.setValue('edit')}}"}
                    },
                    {
                      run: {action: "{{is_locked_by.setValue(this_user.value)}}"}
                    }
                  ]
                }
              }
            }
          ]
        },
        else: {
          steps: {
            run: {action: "{{view_edit.setValue('edit')}}"}
          }
        }
      }
    }
  }
}</script>