Unknown Resource Despite Presence in /resources

Hi All, trying to move a working builder experiment I’ve been making online. Despite stim files present in html/resources/stim, I nonetheless get the dreaded ‘unknown resource’ error:


Trials are setup using random selection from a CSV in the following format (also in /resources):

Please help!

Fixed this myself, problem was the formatting of the path to the stim files. Losing the leading / solved the problem: