Transaction not yet indexed

28tkCdDNbgSRftpFPJUGLUbJSFfbWBq4eqpQiZjhyqBfsxgMEASmkm7ndE2DkDBjDpVNFQy2hcRWRDPBw8iY1kpB

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