Transaction not yet indexed

21Mkh7ghQBRCqjKfEfBdTexCNUtWbzpZxUY8rt8ByUHxQaG73o3ChpK15oLx2oFVCE4vFsQmapetfm1o8qGDY74F

The transaction signature is valid but not yet indexed by this RPC node, or the transaction failed before inclusion.