How to update card information?

Hello,
I got the problem when trying to update card information in Echo show display and Echo spot display.

First, I implement withSimpleCard in LaunchRequestHandler and it works.
Then in other IntentHandler, I updated card information by include .withSimpleCard() in responseBuilder but the Echo show display shows "The template is not available or currently not supported"
I tested on Alexa developer console
Thank you for your support!
Code:

const LaunchRequestHandler = {
    canHandle(handlerInput) {
        return handlerInput.requestEnvelope.session.new || handlerInput.requestEnvelope.request.type === 'LaunchRequest';
    },
    async handle(handlerInput) {
        
        const speechText = 'Welcome to Reading Game';
        return handlerInput.responseBuilder
            .speak(speechText)
            .withSimpleCard('Welcome to Reading Game', 'Hello') // It works
            .getResponse();
    }
};

const AnswerIntentHander = {
    canHandle(handlerInput) {
        return handlerInput.requestEnvelope.request.type === 'IntentRequest' &&
            handlerInput.requestEnvelope.request.intent.name === 'AnswerIntent';
    },
    handle(handlerInput) {
        var correctAnswer = "student";
        const speechText = "The correct answer is " + correctAnswer;
        return handlerInput.responseBuilder
            .speak(speechText)
            .withSimpleCard('Correct answer: ', correctAnswer) // It does not work
            .getResponse();
    }
};