Fabric Pipeline Error

 Today, we noticed that our production pipeline started failing with the following error:

Error:

BadRequest Error fetching pipeline default identity userToken{

"code": "LSROBOTokenFailure","message": "AADSTS50173: The provided grant has expired due to it being revoked, a fresh auth token is needed. The user might have changed or reset their password. The grant was issued on '2026-08-24T05:50:05.7907970Z' and the TokensValidFrom date (before which tokens are not valid) for this user is '2026-09-18T16:05:07.0000000Z'. Trace ID: 250ed633-08f0-4dcb-bad0-11596983e901 Correlation ID: 430f0833-fbc4-44f8-b19a-883ada2cad74 Timestamp: 2026-09-18 18:29:30Z",

"target": "PipelineDefaultIdentity-3e591cb6-2704-49f2-9efd-7196287c9feb","details": null,"error": null }FetchUserTokenForPipelineAsync

Has anyone encountered this issue before or have any idea what could be causing it?

Any suggestions on how to resolve this would be appreciated.