Hello, I am having the same problem. @wakecarter According to your suggestions, I created a folder named pavlovia in my documents folder. I also tried different locations in my computer (e.g. one drive) but html folder is still not created. index.html folder is created along with the js files but they are not in html folder. They are just in my folder named “stroop” along with py scripts and csv conditions, but not in special html folder. Do you think this is critical to run the study in pavlovia? Earlier when I tried to run it online, the program got stuck on “initialising the experiment” page. I am not sure if this folder issue is related to that problem. I would really appreciate any advice! Thank you.