Transaction not yet indexed

MpNvJJ3MKvZpgYfgSfS7qH5VnBPrpvAFLw8Jb7MKJbBGKvGUoBJtYbNDP9Wvff2Kb3GFd8Ruugb2MR9nPocQg13

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