Site build has started timing out with no changes

hi there, have you read through these posts?

and relatedly

sounds to me like your build is indeed timing out - why, i can’t say without knowing things like your instance (netlify) name. But it seems likely that something to do with jekyll isn’t completing, so the build times out.

Give us a shout if neither of those posts help you identify the culprit. Mention what you’ve tried, and what your netlify name is.