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UTC_E_SCENARIODEF_SCHEMAVERSION_MISMATCH
Identify the owning component: scenario document schema version
UTC_E_SCENARIODEF_SCHEMAVERSION_MISMATCH has the unsigned value 0x87C51018. In UTC it comes from DiagTrack scenario-definition processing, where scenario document schema version owns the decision. This result becomes useful only after it is tied to one request generation for this HRESULT. The immediate contract failed because the scenario definition itself targets a schema version incompatible with the installed client, so diagnosis should remain at that boundary until a controlled comparison crosses it for this HRESULT.
DiagTrack scenarios are configuration-driven state machines. A scenario definition, its diagnostic rules, referenced profiles, triggers and action graph must all come from a compatible configuration generation for this HRESULT. Mixing authoring files or package versions can make an otherwise valid identifier unusable for this HRESULT. Record the configuration package or scenario generation together with the Windows build; otherwise a repaired file can be tested against a stale in-memory graph and appear to fail for the same reason for this HRESULT.
What to capture before retrying
| UTC diagnostic field | Value |
|---|---|
| Owning state or object | scenario document schema version |
| Producing layer | DiagTrack scenario-definition processing |
| Do not confuse with | UTC_E_DIAGRULES_SCHEMAVERSION_MISMATCH concerns the companion diagnostic-rules document |
| Decisive evidence | scenario schemaversion, UTC build, package revision, authoring-tool version and signature |
| Narrow comparison | load a scenario exported for the exact target build while reusing its referenced profiles |
The AllStat message names the immediate condition as “<scenario> node contains a schemaversion that is not compatible with this client” for this HRESULT. In practice, the useful extension is to ask whether the request was rejected before any side effect, after partial setup, or during cleanup for this HRESULT. Verify the existence and ownership of the expected output—session, directory, process, result object or emitted event—rather than assuming the message describes the final system state for this HRESULT.
Prove the boundary
- Associate this result with one request, one scenario version and one service process ID for this HRESULT.
- Save scenario schemaversion, UTC build, package revision, authoring-tool version and signature and the first lower-level HRESULT if one exists for this HRESULT.
- Change no policy, provider set or destination except for this test: load a scenario exported for the exact target build while reusing its referenced profiles for this HRESULT.
- Compare the produced artifacts and operational events, not only the top-level return Value.
The most informative neighbor is UTC_E_DIAGRULES_SCHEMAVERSION_MISMATCH. The distinction is concrete: UTC_E_DIAGRULES_SCHEMAVERSION_MISMATCH concerns the companion diagnostic-rules document for this HRESULT. Keeping both symbolic names in logs prevents a broad “DiagTrack error” bucket from hiding whether the failure occurred during parsing, authorization, resource acquisition, execution or teardown for this HRESULT.
Configuration-generation check
Hash the scenario, rules and referenced profile files used for this HRESULT, and record the UTC process start time. If files changed after the process loaded them, restart only after preserving the prior generation so the comparison remains auditable for this HRESULT.
Confirm the repair
Regenerate or deploy a compatible scenario package rather than editing only the error code for this HRESULT. Apply that change only to the owning boundary for this HRESULT. A successful repair must make the controlled case cross this boundary while retaining the intended policy, trace providers, destination and security context for this HRESULT.
Deleting the working directory, killing all ETW sessions or retrying in a tight loop can suppress this result temporarily while leaving the underlying lifecycle defect intact for this HRESULT.
- the same request now produces its documented success or nonfatal status without a second hidden retry
- the operational log shows one coherent request lifetime and no orphaned action, timer, process or trace session
- teardown followed by a second run does not reuse stale state or recreate scenario document schema version
- the nearby condition remains distinguishable: UTC_E_DIAGRULES_SCHEMAVERSION_MISMATCH concerns the companion diagnostic-rules document
Technical references
- Microsoft Open Specifications: Windows error-code registry — reference for DiagTrack scenario-definition processing while interpreting this result.
- Microsoft: Universal Telemetry Client configuration diagnosis — reference for DiagTrack scenario-definition processing while interpreting it.
- Microsoft: UniversalTelemetryClient operational-log guidance
- Microsoft: Windows Event Log query schema
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