Unity RTB error 1227: Creative filtered (approval denied - user security)

Unity ExchangeExpanded via ${AUCTION_LOSS} in lurl

What Unity Exchange says

The creative was disapproved by Unity's exchange review due to a user-security related issue.

Unity Exchange reports this integer in the ${AUCTION_LOSS} macro on the bid's lurl. A search for Unity RTB error 1227 is this code.

What to change

Unity's review rejected the creative for a user-security issue. Replace the creative and resubmit it. Sending the same creative returns this code again.

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