We’re aware of an issue currently affecting app creation. This only impacts apps created after 2026-01-21 00:00:00 UTC, preventing developers from testing these apps locally.
Workaround: Please use Firefox as your browser for now, which should allow you to continue testing.
We’re actively working on a fix and will share more details about the specific issue shortly.
Thanks for your patience, and apologies for the disruption to your workflow.