Float type is always showing 0.0

[sw-dev-code]

When I try to put the float value into the BSON object, after printing JSON I always get 0.0. Is there an example of a working float field inside BSON?

Code:

        BSONObjBuilder bob;
        BSONElement be;
        bob.append("1", (double)3.55);
        // Generate BSON Object
        BSONObject bo = bob.obj();

        // Get string object
        char *json = bo.jsonString();
        // Print BSON in JSON format
        Serial.print("JSON: ");
        Serial.println(json);

Result:

        JSON: {
            "1":0.000
        }
        Total Size of BSON raw data: 16
        BSON Element data (raw):
        0x10 0x00 0x00 0x00 0x01 0x31 0x00 0x00
        0x00 0x00 0xA0 0x33 0x33 0xE3 0xA5 0x00