I wrote a stupid rule to see whether logging can work in rules with the latest openhab core on the master branch. And I use the development environment to test it, which is the app.bndrun. rule “TestLog” when Time cron “5 * * * * ?” then logWarn(“TestLog”, “Test Start!”) logWarn(“TestLog”, “T…

I just saw the trigger you’re using. ‘System started’ had to be remade for the new rule engine and may not work yet. Try a cron trigger that fires every 5s.