I can't replace data.json in pages

[ensk]

for some reason my pages are ignoring the json file with the same name of the page file and can't replace data.json values. i followed the same structure as in patternlab mustache and my templates are using embed layout

[lewisnyman]

This seems to work for me, here are some example files:
https://gist.github.com/lewisnyman/96c3fdbcb5d0fcc1c2ae