We've fixed the issue with editing Zaps, and it's live on the site. You should be able to create and edit Zaps normally now. Please contact us if you have any questions: https://zapier.com/app/contact-us
If you're creating or editing a Zap, you may see a blank page after selecting the trigger or action. We're working on a fix to resolve this. Subscribe to this incident for further updates and when it is resolved.