An authoritative run-state read did not succeed, so nothing that read
returned is evidence about the run. One cause is Mastra answering from its
in-memory fallback instead of from storage — what comes back then describes
the Run object this isolate happens to hold rather than what is persisted —
and the run object's alarm raises it for any other failed read too, carrying
the underlying fault as cause. Distinct from UnknownRunError: the run may
well exist and be suspended — nothing about it could be READ. The message
therefore names no cause: it is minted where the read failed, not where the
reason is known.
An authoritative run-state read did not succeed, so nothing that read returned is evidence about the run. One cause is Mastra answering from its in-memory fallback instead of from storage — what comes back then describes the Run object this isolate happens to hold rather than what is persisted — and the run object's alarm raises it for any other failed read too, carrying the underlying fault as
cause. Distinct from UnknownRunError: the run may well exist and be suspended — nothing about it could be READ. The message therefore names no cause: it is minted where the read failed, not where the reason is known.