version 2.23 Tracker issues

We’re trying to configure a tracker programme using the 2.23. We can configure it okay, but can’t seem to change the period range as the << and >> buttons are greyed out.

Stage is repeatable monthly for this example but the same problem also happens when it’s yearly. For monthly, you can only select the months from that year. The left and right arrows are disabled.

We tried to see if the same problem exists on the demo site, but this had more issues where we couldn’t actually select the programme.

Is the issue on the demo site a possible bug? For the previous issue, is there something we need to configure?