Tracker not reacting

3.0 migration
1

Hello,

Tracker is not reacting to collection inserts.

Server code:

if (Meteor.isServer) {
  Meteor.publish('sites', function () {
    if (!Meteor.userId()) {
      Meteor.Error('not-authorized', 'You must be logged in to view this data')
    }
    return SitesCollection.find()
  })
}

Client code:

  Tracker.autorun(() => {
    console.log('[TRACKER] Update')
    const subscription = Meteor.subscribe('sites')
    if (!subscription.ready()) {
      console.log('[TRACKER] Sites subscription not ready.')
      return
    }
    const data = SitesCollection
          .find({ 'zone._id': workingZone() })          // Solid.JS signal
          .fetch()
    console.log('[TRACKER] Sites data:', data)
    setSitesRows(data)          // Solid.JS signal
    setReady(true)          // Solid.JS signal
  })

The tracker function is run only once. If I insert a new Site using a server Meteor method, the document is inserted normally, but the Tracker does not react. The same code works perfectly in Meteor 2.15.

If I trigger another find/fetch, with a button for instance, the inserted document appears, so the pub/sub is working. It’s just the Tracker is not reacting.

Any pointer, very welcomed.