VAST-4.2-closedcaptionfiles-unknown-child
<ClosedCaptionFiles> may only contain <ClosedCaptionFile> elements
ErrorSchemaIAB VAST 4.2 §2.4.1VAST 4.2 and 4.3
`<ClosedCaptionFiles>` (added in VAST 4.2) is a container for `<ClosedCaptionFile>` elements only.
How to fix
Remove the non-<ClosedCaptionFile> element from <ClosedCaptionFiles>.
Check your VAST tag for
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