Missing h4 headers

Push to Kindle is missing some headers. I’ll include an example below:

Expected:

—Fast Company

PayPal

“Of course, neither team had set out to build the world’s foremost email payments system. For X.com, like Confinity, the feature emerged as an afterthought.

Actual:

—Fast Company

“Of course, neither team had set out to build the world’s foremost email payments system. For X.com, like Confinity, the feature emerged as an afterthought.

Link to article:

Thanks for reporting this. We have custom extraction rules for Substack but they only applied to sites under the substack.com domain (e.g. mynewsletter.substack.com), we’ve now expanded this to apply to Substack sites with custom domains, like this one. Please let us know if you still have trouble.

Now it fails to upload to Google Play Books :thinking:

Odd. We’ll take a look at this and see if there’s anything we can do.