BSEC_OUTPUT_GAS_ESTIMATE Mappings

[azcoov]

I have the following in my .aiconfig:

"classes": [
      {
        "id": 1,
        "name": "Neutral Air",
        "color": "#006ead"
      },
      {
        "id": 2,
        "name": "Butane",
        "color": "#e472db"
      },
      {
        "id": 3,
        "name": "Propane",
        "color": "#4ab073"
      }
    ]

I trained a model with Neutral Air, then Butane, then Neutral Air, then Propane.

I was expecting these to be mapped as follows:
BSEC_OUTPUT_GAS_ESTIMATE_1 = Neutral Air
BSEC_OUTPUT_GAS_ESTIMATE_2 = Butane
BSEC_OUTPUT_GAS_ESTIMATE_3 = Propane

They are actually mapped as follows:
BSEC_OUTPUT_GAS_ESTIMATE_1 = Butane
BSEC_OUTPUT_GAS_ESTIMATE_2 = Neutral Air
BSEC_OUTPUT_GAS_ESTIMATE_3 = Propane

I was hoping you can explain the mapping logic so that I can make note of that and make sure I'm accurately collecting the estimates based on their valid types