InsertOneAsync不插入也不引发任何异常

Question

在带有MongoDB.Driver 2.7.2的异步控制台Core .net 2.1中，随机未插入文档，但没有抛出异常

public async Task InsertRequestLog(RequestLog messageLog)
{
    _client = new MongoClient(Settings.MongoDb);
    _database = _client.GetDatabase(_databaseName);
    var collection = _database.GetCollection<RequestLog>("RequestLog");
    await collection.InsertOneAsync(messageLog);
}