Hello bosch_tinker, For "Any suggestions on how to restart the conversions that don't involve reprogramming it?", you could call API bme680_soft_reset() to reset BME280 by software, then reinitialize and configure.
After you downloaded BSEC software, you could find and refer bsec_iot_example. https://www.bosch-sensortec.com/software-tools/software/bsec/
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