I have now signed out of my account in Xcode, quit the application, signed back in, and also cleared the Xcode derived data and cache.
However, I am still receiving the 401 Unauthorized error
Any operation related to Xcode Cloud (e.g., viewing the dashboard, creating a workflow) fails immediately across all Xcode projects, including brand-new empty projects. The error is consistent and always appears as:
API Invalid status code: 401. Domain: XcodeCloudCombineAPI.XCCResponseError Code: 1
System Information: macOS Version 15.6.1 (Build 24G90) "details" : "Error alert: API Invalid status code: 401.: XCCResponseError(responseErrorType: XcodeCloudCombineAPI.XCCResponseError.XCCResponseErrorType.invalidStatusCode(XcodeCloudCombineAPI.LegacyHttpStatus.unauthorized), requestUrl: Optional(https://appstoreconnect.apple.com/ci/api/teams//apps/find?bundle_id=), traceId: Optional("2ab09bea8da9ef39"), retryAfterSecsStr: nil, response: Optional(<NSHTTPURLResponse: 0x600000c6a800> { URL: https://appstoreconnect.apple.com/ci/api/teams//apps/find?bundle_id=} { Status Code: 401, Headers {\n "Content-Length" = (\n 0\n );\n Date = (\n "Fri, 05 Sep 2025 10:04:07 GMT"\n );\n Server = (\n nginx\n );\n "Set-Cookie" = (\n "dqsid=; Expires=Thu, 01 Jan 1970 00:00:00 GMT; Path=/; Secure; HTTPOnly",\n "dqsid=eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJpYXQiOjE3NTcwNjY2NDQsImp0aSI6IlNQZ1FxVXd1UFF1UjI1X2wtZ2ZjN2cifQ.uoE9MRTx-TCY03Sw1qgMBcWrPVA8adtKd-nOZVwllS4; Max-Age=1800; Expires=Fri, 05 Sep 2025 10:34:04 GMT; Path=/; Secure; HTTPOnly"\n );\n "Strict-Transport-Security" = (\n "max-age=31536000; includeSubDomains; preload"\n );\n "x-apple-jingle-correlation-key" = (\n ZNGYRW2NJQJKAYDKU5FGCY6VVE\n );\n "x-b3-traceid" = (\n 2ab09bea8da9ef39\n );\n "x-cache-status" = (\n BYPASS\n );\n "x-content-security-policy" = (\n "script-src 'self' *.apple.com"\n );\n "x-content-type-options" = (\n nosniff\n );\n "x-daiquiri-instance" = (\n "daiquiri:15751001:mr36p00it-hyhk07174801:7987:25RELEASE91:daiquiri-amp-dsce-asc-int-002-mr",\n "daiquiri:18493001:mr85p00it-hyhk03154801:7987:25RELEASE91:daiquiri-amp-all-shared-ext-001-mr"\n );\n "x-frame-options" = (\n SAMEORIGIN\n );\n "x-via" = (\n "2.0 PS-WUH-01zra68 [BYPASS]"\n );\n "x-ws-request-id" = (\n "68bab594_PS-WUH-01zra68_27159-54435"\n );\n "x-xss-protection" = (\n "1; mode=block"\n );\n} }))\nError Description: Optional("API Invalid status code: 401.")\nRecovery Suggestion: nil\nHelp Anchor: nil",