Fixed in the next release. This applied to any BB-Code that outputs from a template in XenForo (e.g. QUOTE, PHP, CODE). Because VaultWiki runs almost completely internally with a single controller call, VaultWiki typically processes the BB-Code on wiki pages before the XenForo_View is ready.
This issue is resolved by creating a proxy view for the parser until the final view becomes available. There is no real (additional) drawback to this, since that's how VaultWiki templates are resolved too, but XenForo's stock BB-Codes don't use the same class as VaultWiki templates, so this consideration needed to be made.