Hi UEF,
1.Firstly, it is better to refer release note in BME688 dev kit software package, for example the release note in BME688 dev kit software v2.0.6 mentioned BSEC library and BME AI-Stuio version requirement.
2.Latest BME688 dev kit software v2.0.6 missing config file, you could copy attached config file which was generated by BME AI-Studio-v2.0.0, then it will run well for BME688 dev kit.
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