Build Issues (one step behind)

I am working on this page and it appears that when you make changes in Sanity, the webhook triggers a build in Netlify, but the deployed site does not reflect the changes until you manually initiate another build. It seems like the deployment is consistently one build behind.
Any ideas why is this happening?
Thanks in advance

Can you provide an example of a change that should have been reflected in a build from the webhook and wasn’t? As well as the build that you manually initiated that then reflected that change?