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UCEERR_CHANNELSYNCABANDONED
UCEERR_CHANNELSYNCABANDONED is a Windows User Composition Engine (UCE) HRESULT. It indicates that a synchronization request ended because the composition channel or its owning context was abandoned during the wait.
What to check for UCEERR_CHANNELSYNCABANDONED
- Check for window destruction, dispatcher shutdown, application exit, or render-thread termination.
- Stop waiting for the channel after teardown starts and cancel dependent work cleanly.
- Investigate any preceding render-thread failure because it can cause the channel to be abandoned.
Microsoft guidance for WPF render-thread failures
Diagnostic interpretation
This result has the HRESULT value 0x88980414. AllStat records the condition as “it”.
Evidence to capture
- Capture any IErrorInfo text, activity identifier, event-log entry, and subsystem trace that mentions this result or the uceerr / channelsyncabandoned operation.
- Reproduce this result with the smallest valid input and note whether the result changes with identity, architecture, service state, or target object.
Retry and recovery
Retry this result only when the owning API documents a transient state or after the condition described as “it” has changed.
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