Unity RTB error 1235: Creative filtered (approval denied - creative quality)
What Unity Exchange says
The creative was disapproved by Unity's exchange review due to a creative quality-related issue. The creative was moderated by Unity's review. For more information, contact your Unity Ads representative.
Unity Exchange reports this integer in the ${AUCTION_LOSS} macro on the bid's lurl. A search for Unity RTB error 1235 is this code.
What to change
A Unity reviewer rejected the creative for quality. Replace it, or contact your Unity Ads representative about this creative. Resending it returns 1235.