What does HRESULT 0x88980423 (UCEERR_PARTITION_ZOMBIED) mean?

Status / error code:		Category:

Constant name:
Source:		Operating System:
Description: The composition partition has been terminated and can no longer be used.

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UCEERR_TRANSPORTOVERLOADED	MILAVERR_NOCLOCK

UCEERR_PARTITION_ZOMBIED

UCEERR_PARTITION_ZOMBIED is a Windows User Composition Engine (UCE) HRESULT. It indicates that the composition partition is considered unusable after a fatal render-channel, device, or lifecycle failure.

What to check

Treat the affected composition context as invalid and do not submit further rendering work to it.
Check the earliest render-thread, driver, device, or shutdown failure that caused the partition to terminate.
Recreate the window or application rendering context only after the underlying cause has been addressed.

Microsoft guidance for WPF render-thread failures

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