Invariant Violation Target container is not a DOM element in private CRA2 projects

[cristiano-belloni]

🐛 bug report

Description of the problem

All my private sandboxes (and only the private ones) created with Create React App v2 fail with the Invariant Violation Target container is not a DOM element. exception. Public one work; I actually tried a working public one and set it private, without changing the code, and it stopped working with the aforementioned error (here's the now-private one: https://codesandbox.io/s/qv84lx1kz4)

How has this issue affected you? What are you trying to accomplish?

Working with private sandboxes is not possible anymore

Your Environment

Software	Name/Version
Сodesandbox	PROD-1552372285-96510b09
Browser	73.0.3683.86
Operating System	Mac OS Mojave 10.14.2

[sebas5384]

For me all my sandboxes are failing with React create app, but after saving a file it works again 😕

[CompuIves]

Sorry for the inconvenience! The fix for this should be live now.