"System started" rule not firing

Playing around with OH3, clean install openHABian v1.6.2, new SD card.
I did disable IPV6 and wifi.
I added the modbus and ntp binding, and the map and javascripts transpormations through the addons.cfg file. This worked without a hitch.

I then copied a .rules file from my old setup to the OH3 and rebooted the system.

The rules file with trigger “system started” is not executed. I can run the rule manually by clicking on the “play” button in the Rules administration tab (or with a Time cron trigger) but it won’t run when I restart OH or reboot the Pi.

The rule is extremely simple (just an init of some unbound items).

rule "vva_init"
when
  System started
then
  logInfo("vva_init", "Rule verventa_init_ei_regs is executing.")
  itm_vva_ei_ht_req_lw.postUpdate(0)
  itm_vva_ei_ht_req_hw.postUpdate(0)
  itm_vva_ei_cl_req_lw.postUpdate(0)
  itm_vva_ei_cl_req_hw.postUpdate(0)
end

Tips appreciated.

Duplicate…