Crash after 1min 20sec

[Lokefar]

After 1 min 20sec my PyCom SiPy crash and produces this for the serial output:

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I have tested it on two different boards. Gives same result, which makes me thing it has something to do with my sensor board (homemade). Any ideas what might be triggering this?

[Lokefar]

I looks like a re-flashing of the firmware fixed the issue.