{
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  "path": "/t/space-stuck-on-starting-indefinitely-with-completely-clean-startup-log-gradio-6-6-0-ssr-disabled/177019#post_1",
  "publishedAt": "2026-06-21T09:44:32.000Z",
  "site": "https://discuss.huggingface.co",
  "textContent": "**Space:** `alvarocas/cosmo-emulator` (private — happy to share with staff via DM if needed)\n**SDK:** gradio, `sdk_version: 6.6.0`\n**Hardware:** `CPU Basic`\n\nMy Space has been stuck on **“Starting…”** indefinitely since 06/20/2026. It worked correctly until 06/18/2026, with no changes to the code in between the working and failing runs (later changes were debugging attempts, listed below).\n\nThe container logs show a completely clean startup with no exceptions and no further output after the app reaches its ready state:\n\n\n    [EMULATOR] Loading checkpoint: /app/weights/[...].pth\n    [DATASET] Loaded 256 samples.\n    [EMULATOR] Simulations available from CosmoDataset: 256\n    * Running on local URL: http://0.0.0.0:7860\n    * To create a public link, set `share=True` in `launch()`.\n\n\nDespite reaching `Running on local URL`, the Space UI never transitions from “Starting” to “Running”, even after waiting several hours / overnight.\n\n**What I’ve already ruled out:**\n\n  * Disabled experimental SSR explicitly (`demo.launch(ssr_mode=False)`) — confirmed by the absence of `with SSR ⚡` in the log after the change.\n  * Fixed a non-integer `scale` value on a `gr.Column` (Gradio 6 requires int).\n  * Moved `css` from the `gr.Blocks()` constructor to `launch()` per the Gradio 6 deprecation warning.\n  * Multiple **Factory Rebuilds** — same clean log every time, same “Starting” hang.\n\n\n\nNone of the above changed the outcome.\n\nHas anyone seen this exact pattern recently — clean Python startup, app listening on port 7860, but the Space never reports as Running?\n\nThanks!",
  "title": "Space stuck on \"Starting\" indefinitely with completely clean startup log (Gradio 6.6.0, SSR disabled)"
}