Transaction not yet indexed

VMm21rEbTSAoyywAHAf4FcAFPvHyhyHsZwqBaxT1MWSXuAt3K7msq8vG5hgfVs1Bq2fY5MUh5swbWtJYsqfEykA

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