For reference for anyone else with similar issues.
It would appear that my adblocker was problematic on Firefox (presumably any adblocker on any browser) hence resources not downloading. So nothing wrong with the stims/referencing stims/condsfiles etc.
There were some other issues and one in particular is that audio files were not playing all the way through. I am in the process of rerecording the audio to extend the duration with blank space at the end of the file, hopefully this will resolve that.
I had thought this was fixed by changing the sound to ptb and changing latency to not critical, but it wasn’t a fix all. Still some work to do.
Thanks to those who have helped (especially Kris via Nicola on Friday when I was about reaady to pop!
Glen