Vercel production deployments failing at deploying outputs stage with internal error

Problem

Deployments consistently fail at the final stage.

Current Behavior

Stage: Building: Deploying outputs…
Error:

Error: We encountered an internal error. Please try again.

This happens for both:

vercel deploy --prebuilt --prod --yes
vercel --prod --yes (normal cloud build)

What Succeeds

Local build succeeds:

vercel pull --yes
vercel build --prod

Vercel cloud build also succeeds (compile, TS, routes, output creation), then fails only at output deploy.

Environment

Vercel CLI: 50.23.2

Hi there,

Thank you for contacting Vercel Support. I’m sorry for the trouble you’re experiencing, and I’m happy to help.

We’ve identified an issue that can cause build failures for some projects using Middleware, and our team is currently investigating and working on a mitigation. We will share a further update on our status page: https://www.vercel-status.com/. Although the status page is mainly mentioned for the Dubai region, it is affecting some other regions as well.

In the meantime, if you have any questions please let us know. Thanks for your patience while we work on this.

Currently I am blocked on all my project deployments.

Please let me know once this is resolved. Thanks

Okay - I understand the issue and that the team is working hard on addressing the issue. However, can you PLEASE provide any sort of timeline as to when this issue will be fixed?