Can you share the experiment repository on Pavlovia? This is the Python code, but in order to figure out what’s not working online, the JavaScript is what’s relevant.
To be clear, is it not giving you any feedback at all, or is it giving you the wrong feedback? There can be issues with resposne.corr because Python and JavaScript use different key-codes, see Pavlovia storing all key_resp_stimuli.corr as wrong