Proscenic A9 purifier support not functioning correctly

I'm having issue with my air purifier support. I only get four entities in HA: fan.a9, switch.a9_child_lock, switch.a9_filter_cartridge_reset, and switch.a9_power. Nothing about the air quality or the other info available via the Tuya IoT cloud. However, the bigger problem is that the power status is not reported correctly. I can use the switch to turn the purifier on, but in HA, the switch resets to off after a few seconds and the state shows as unavailable.

Device normal info

• Proscenic
• A9

Device info

{
  "result": {
    "active_time": 1637763360,
    "biz_type": 0,
    "category": "kj",
    "create_time": 1614036229,
    "icon": "smart/icon/ay1533718828917HNmxD/538907f85c58eed4490ad81ded112c55.png",
    "id": "xxxxxxxx",
    "ip": "xxxxxxxx",
    "lat": "xxxxxxxx",
    "local_key": "xxxxxxxx",
    "lon": "xxxxxxxx",
    "name": "A9",
    "online": true,
    "owner_id": "xxxxxxxx",
    "product_id": "giwqfeiezesbkkbe",
    "product_name": "A9",
    "status": [
      {
        "code": "switch",
        "value": true
      },
      {
        "code": "pm25",
        "value": 5
      },
      {
        "code": "filter",
        "value": 41
      },
      {
        "code": "lock",
        "value": false
      },
      {
        "code": "light",
        "value": false
      },
      {
        "code": "filter_reset",
        "value": true
      },
      {
        "code": "filter_days",
        "value": 1257
      },
      {
        "code": "total_time",
        "value": 0
      },
      {
        "code": "total_pm",
        "value": 0
      },
      {
        "code": "air_quality",
        "value": "mild"
      },
      {
        "code": "fault",
        "value": 0
      }
    ],
    "sub": false,
    "time_zone": "-05:00",
    "uid": "xxxxxxxx",
    "update_time": 1638640760,
    "uuid": "xxxxxxxx"
  },
  "success": true,
  "t": 1639063338759
}

Device specifications

{
  "result": {
    "category": "kj",
    "functions": [
      {
        "code": "switch",
        "type": "Boolean",
        "values": "{}"
      },
      {
        "code": "lock",
        "type": "Boolean",
        "values": "{}"
      },
      {
        "code": "light",
        "type": "Boolean",
        "values": "{}"
      },
      {
        "code": "filter_reset",
        "type": "Boolean",
        "values": "{}"
      }
    ],
    "status": [
      {
        "code": "switch",
        "type": "Boolean",
        "values": "{}"
      },
      {
        "code": "pm25",
        "type": "Integer",
        "values": "{\"unit\":\"\",\"min\":0,\"max\":999,\"scale\":0,\"step\":1}"
      },
      {
        "code": "filter",
        "type": "Integer",
        "values": "{\"unit\":\"%\",\"min\":0,\"max\":100,\"scale\":0,\"step\":1}"
      },
      {
        "code": "lock",
        "type": "Boolean",
        "values": "{}"
      },
      {
        "code": "light",
        "type": "Boolean",
        "values": "{}"
      },
      {
        "code": "filter_reset",
        "type": "Boolean",
        "values": "{}"
      },
      {
        "code": "filter_days",
        "type": "Integer",
        "values": "{\"unit\":\"h\",\"min\":0,\"max\":3000,\"scale\":0,\"step\":1}"
      },
      {
        "code": "total_time",
        "type": "Integer",
        "values": "{\"unit\":\"min\",\"min\":0,\"max\":5256000,\"scale\":0,\"step\":1}"
      },
      {
        "code": "total_pm",
        "type": "Integer",
        "values": "{\"unit\":\"mg\",\"min\":0,\"max\":10000000,\"scale\":0,\"step\":1}"
      },
      {
        "code": "air_quality",
        "type": "Enum",
        "values": "{\"range\":[\"great\",\"mild\",\"good\",\"medium\",\"severe\"]}"
      },
      {
        "code": "fault",
        "type": "Bitmap",
        "values": "{\"label\":[\"e1\",\"e2\"]}"
      }
    ]
  },
  "success": true,
  "t": 1639063367353
}