VNC not working unless...HDMI is plugged in (?)

Hi all,

latest Vangelis here (updated yesterday). One thing i have noticed (and please forgive me if this is a naff question/has been answered already - but i can’t find such topics here when searching) is that the zynthian.local webmenu will not reveal the vnc options unless i boot my pi with a hdmi-connector plugged in.

I tried twice to reboot it without, both times those two menus where missing. The third time i plugged the cable in and it was immidately visible in the pull-down menu.

Is this a known quirk? Any way to solve it in order to boot it headless with VNC?

edit. Forgot to say it an rPI5/4GB in this case.