Transaction not yet indexed

ME2xeSCmdvWLsSHNtfMFmGKWLPxyXkaqCv2A3MWkRw55fib8cSj2dpogMsQEZR6t6imTCo9RC7tPoYNyT4jkSDM

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