Transaction not yet indexed

U1z21JqXxCbP5wXBs8vftMAWWQCZGkoP8cgAhHxbfRgTxuGVCXWDJqm2ApTC8DCPKPRdGeAqMnt8gnmrb2xpJvz

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