Example does nothing when connected to different broker

[GraceStangroome]

If I connect a local broker, the example when I run it does nothing. It doesn't load, there's no debug messages in the console, there are no new logs in the broker log file, the simulator screen just stays completly black or white. It seems like there's not enough error-catching in the example?

[leeway1208]

Pls using mqtt.logLevel = .debug