TypeError: Invalid character in header content ["Authorization"]

I'm trying to deploy a subgraph to the sepolia tesnet, but I'm getting this error:

`
graph deploy --studio crowdfundingsepolia

Which version label to use? (e.g. "v0.0.1"): v0.0.1
Skip migration: Bump mapping apiVersion from 0.0.1 to 0.0.2
Skip migration: Bump mapping apiVersion from 0.0.2 to 0.0.3
Skip migration: Bump mapping apiVersion from 0.0.3 to 0.0.4
Skip migration: Bump mapping apiVersion from 0.0.4 to 0.0.5
Skip migration: Bump mapping apiVersion from 0.0.5 to 0.0.6
Skip migration: Bump manifest specVersion from 0.0.1 to 0.0.2
Skip migration: Bump manifest specVersion from 0.0.2 to 0.0.4
✔ Apply migrations
✔ Load subgraph from subgraph.yaml
Compile data source: Router => build/Router/Router.wasm
✔ Compile subgraph
Copy schema file build/schema.graphql
Write subgraph file build/Router/abis/Router.json
Write subgraph manifest build/subgraph.yaml
✔ Write compiled subgraph to build/
Add file to IPFS build/schema.graphql
.. QmTvowubVLpCURbrqH4foZJs7tCHdZTjYuq4KeMj6DjpTS
Add file to IPFS build/Router/abis/Router.json
.. QmXKY5nrhVGrsoPznL8EwmYeCHfAheUjUFDTs28Ve8z7L4
Add file to IPFS build/Router/Router.wasm
.. QmWgG3gsajdm7ruaobkb5dDxPCnYoH3aS3r7dnjtgpxfpm
✔ Upload subgraph to IPFS

Build completed: QmcHfEFScyYFYardNrutEzcZuKFML8v4APaB8XP7ZrAEd4

⠋ Deploying to Graph node https://api.studio.thegraph.com/deploy/ TypeError: Invalid character in header content ["Authorization"]
Code: ERR_INVALID_CHAR
`

Start by reproducing the graph deploy --studio crowdfundingsepolia command against the listed Graph Studio endpoint and inspect how its Authorization header is formed. The issue mentions no source file or test; done means deployment no longer fails with ERR_INVALID_CHAR while uploading the compiled subgraph.