jpsych two trials racing issue? cannot get feedback from last stimuli trial

[NanChen5353]

Hi community, just wondering if anyone has a clue on this? Thank you very much!

I tried to display stimuli_screen (displayed every trial in test_stimuli) first and then ask jsych to retrive the data to give feedback to participants in my next trial: feedback_screen, but it seems the timing is a problem here if I set it short now 1500ms for stimuli_screen. Sometimes, for some letters, there no feedback at all. If I set it 5s for stimuli_screen, it is mostly fine, but if I participants respond very late, also run into this issue. I guess it is because jspsych does not have enough time to retrieve the data before the next feedback_screen come along?
or alternatively, how do you give feedback based on the rule of your experiment rather than direct feedback?

`for (var i = 0; i < test_stimuli.length; i++) {
        let stimuli_screen_practice = {
            type: jsPsychCategorizeHtml,
            stimulus: test_stimuli[i].stimulus,
            data: test_stimuli[i].data,
            key_answer: test_stimuli[i].correct_key,
            stimulus_duration: 1500,
            trial_duration: 1500,
            show_feedback_on_timeout: false,
            timeout_message: ' ',
            feedback_duration: 0,
            correct_text: ' ',
            show_stim_with_feedback: false,
            incorrect_text: ' ',
        };





        let feedback_screen_practice = {
            type: jsPsychHtmlKeyboardResponse,
            stimulus: function () {
  
                let last_trial_data = jsPsych.data.get().last(1).values()[0] 

                let response = last_trial_data.response 
                let correct_key = last_trial_data.correct_key 
                let h12AX = last_trial_data.conditionalDetect 



      
                if (response) response = response.toUpperCase();

      
                if (!response) {
                    return "<p style='color:red;'>Time out!</p>";
                }

           
                if (response === correct_key) {
                    return "<p style='color:green;'>Correct!</p>";
                }

     
                if (correct_key === "K" && response === "D" ) {
                    return "<p style='color:red;'>Missed the match!</p>";
                }

                if (correct_key === "D" && response === "K" ) {
                    return "<p style='color:red;'>Not a match!</p>";
                }

                return "<p style='color:red;'>Incorrect press!</p>";
            },

            stimulus_duration: 750,
            trial_duration: 750,
            response_ends_trial: false,

            data: { task: 'feedback', practice: true }
        };


        test.push(stimuli_screen_practice);
        test.push(feedback_screen_practice);
    }

var practice = { timeline: test };
`