FLX-5012: the committed state is older than the declared maximum age
Family: numerics (the 5000 band)
SEAM-FIDELITY-SPEC §7: the ship gate compares the state's commitment time against budget.maxStateAge. A state older than that is refused rather than reused, so a fidelity record cannot be carried forward past the window its own declaration granted it.
Look it up offline
$ fluxsim explain FLX-5012
Every code is listed in the error index.