Repro steps

1. python -m SimpleHTTPServer 8080
2. yarn && yarn run cypress open
3. In Cypress app, run test-regression.spec.js
4. Change index.html to eg:

<div style="width:200px; height:200px; background-color: green; font-size:40px">
  oh hi
</div>

1. Re-run test

Expected

A snapshot should be taken with the changes, compared to the first one

Actual

Only a single snapshot is taken, from the previous content (red box, HELLO THERE text)