B4R Question Program only seems to run when logs are send to IDE

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I must be doing something stupid. But I just tested the blinking led code, and it works. But I noticed the Tx led blinking, and I think this is because the Arduino sends the log to the IDE.

So I wanted to disable those Tx led blinks, so I set the 'Logs' option in the Board Selector to None. But then the example doesn't work anymore, no led blinks.

When I just comment out the Log() lines, everythings works as expected.

What is the reason that the code doesn't seem to do anything when that option is set to None?