Me too. Python Gradio space. Was working fine yesterday. Committed modified app.py that works perfectly on my home PC in VS2022 . Even after factory rebuild, just sitting on “Building” while logs just look normal. Pushed and started.
EDIT: After about 1.5 hours this additional error message appeared int Build log following the normal messages that looked like everything was OK:
ERROR: failed to push spaces-registry.huggingface.tech/spaces/6801b2253a3d2135e30da61a:cpu-08475b3-7x848txl: unexpected status from HEAD request to https://spaces-registry.huggingface.tech/v2/spaces/6801b2253a3d2135e30da61a/manifests/cpu-08475b3-7x848txl: 401 Unauthorized