FLX-3105: bundle does not validate, so its seam cannot be resolved
Family: seam/conformance (the 3000 band)
Resolution delegates to the FLUX offline reference validator: every reference resolves, every id is unique, every weight sums, and every in-bundle FLUID document is valid for its declared version. A bundle that fails those checks has no seam to resolve, and repairing it here would mean the engine ran against something the validator refused.
Look it up offline
$ fluxsim explain FLX-3105
Every code is listed in the error index.