How do I re-focus in Entangle preview/live view?

Does anyone know how I can refocus my camera when in the preview/live view in Entangle?
I can enter the preview (live) view and focus once with the ‘a’ key - after that, focus is locked until I restart the software and the camera, even when trying to refocus using the camera’s physical controls.
According to the built-in manual I should be able to ‘trigger autofocus at any time’ this way but it’s not working in my case.
Am I missing something? Do I need to set something differently in my camera settings? In Entangle?

  • Canon EOS 5D MK3

  • Manual mode

  • Entangle 3.0

  • Debian 13

  • Wayland