My Response Time (RTs) data is not showing on the export file. What should I do?

Hello!
I am working on creating a survey for an experiment in second language learning. I have added audio files and pictures in the survey such that in each trial participants will hear two sentences and have to click on one of two pictures as the correct answer. I am interested in tracking how long it takes from hearing the grammatical feature I am investigating to selecting an option (i.e. one of the two pictures). I have put a code in the JavaScript space which does the tracking and should report the response time as embedded data to Qualtrics.
Currently, when I test-run and then export the file from the data & analysis tab, I do not see this information reported. What should I do?
Thank you for your answers in advance!