How do I troubleshoot Gatsby Cloud build?

[shawngrona]

I have an error on Gatsby Cloud build when gatsby-source-wordpress v5 plugin is running that I don't get when building locally.

On a local build I see that the page queries run and then later the media item queries run, however on Gatsby Cloud the build dies on the page query with the error:
Error occurred while fetching "MediaItem" nodes in inline html. and suggests I do set some gatsby-source-wordpress debugging properties that results in:

00:18:57 AM: # also get the wpUrl to save on # of requests
00:18:57 AM: generalSettings {
00:18:57 AM: ERROR  gatsby-source-wordpress  GraphQL query: {
00:18:57 AM: }
00:18:57 AM: url
00:18:57 AM: # @todo maybe there's a better place for this
00:18:57 AM: }
00:18:57 AM: schemaMd5
00:18:57 AM: ERROR  gatsby-source-wordpress  null

I've done this with a fresh npm install to be sure I'm on the same package versions as the cloud. Why would the build behave differently on Gatsby Cloud vs locally?

[shawngrona]

The error above was a bit of a red herring. Looks like my issue was the Wordpress Jetpack plugin blocking sign-ins and dropping the graphql connection from Gatsby Cloud