flyctl deploy hangs on "Remote builder ready"

I’m trying to deploy a basic NodeJS app. Deployment either with flyctl deploy or GH actions results in:

root@echo % flyctl deploy
==> Verifying app config
--> Verified app config
==> Building image
Remote builder fly-builder-old-voice-135 ready

Nothing else happens, no more log messages and I’ve tried leaving it for a while.

Adding --verbose to the command gives no additional output.

I’ve also tried deleting the builder app so it recreates it, no luck there either.

I was able to deploy it with the --local-only flag so guessing something is broken on Fly’s end.

There was an issue deploying from GitHub Actions earlier today. More info: Deploying to Fly via GitHub Action failing - #19 by michael