Sleeping spaces are not restarting

It wasn’t my Spaces, but I encountered a similar case a few days ago.

1. Even after pausing Spaces or performing a normal rebuild, the previous runtime persisted as a ghost (accessible and functional via API)
2. If a ghost exists, the build completes but the app won’t launch anew
3. Only a factory rebuild could eliminate the ghost runtime
4. After that, it started working fine

So as a “folk remedy”: If you’re stuck, try a factory rebuild → If that fails, try a rebuild with an empty commit → If that fails, change sdk in README.md and revert it to clear the cache