Reordering notes in custom sort doesn't work

[annoyedhumanoid]

Operating system

macOS

Joplin version

3.0.15

Desktop version info

Joplin 3.0.15 (prod, darwin)

Client ID: 11cb0a2d420047cd9119a44d443e827c
Sync Version: 3
Profile Version: 47
Keychain Supported: Yes

Revision: 598677b

Backup: 1.4.1

Current behaviour

1. Create a notebook with several notes
2. Toggle sort order field to custom
3. Drag a note up or down in the note list sidebar to move it
4. It jumps to the top and can only be moved between other notes that have jumped to the top

moving.notes.demo.mov

Expected behaviour

The dragged notes should move to the position hinted by the horizontal line between notes, rather than sticking to the top.

Logs

The only message in the console associated with moving a note is the following:

App: node:internal/process/task_queues:95
Refreshing notes: 2 5ae3997be9a94aeab4f21e069fd97d01

[personalizedrefrigerator]

I can reproduce this on Linux with v3.1.18 and v3.0.15. For me, alt+arrow keys seem to correctly re-order notebooks, but clicking and dragging fails.