What does HRESULT 0xC03A000E (ERROR_VHD_CHILD_PARENT_ID_MISMATCH) mean?

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The chain of virtual hard disks is corrupted. There is a mismatch in the identifiers of the parent virtual hard disk and differencing disk.

Could be also:
Constant	Type	OS
STATUS_VHD_CHILD_PARENT_ID_MISMATCH	NTSTATUS	Windows

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ERROR_VHD_PARENT_VHD_NOT_FOUND	ERROR_VHD_CHILD_PARENT_TIMESTAMP_MISMATCH

ERROR_VHD_CHILD_PARENT_ID_MISMATCH

ERROR_VHD_CHILD_PARENT_ID_MISMATCH means the identity stored in a differencing child does not match the parent file it found. This normally means that the original parent was changed, replaced, or restored from a different point in time.

Important precautions

Locate the exact original parent or a verified byte-identical copy before changing parent relationships.
Do not use Set-VHD -IgnoreIdMismatch merely because a parent filename looks correct.
Microsoft documents that bypassing the identity check can cause data loss unless old and new parent contents are exactly the same.

Microsoft: Set-VHD

Microsoft: Get-VHD

Microsoft: Merge-VHD

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