Transaction not yet indexed

Am8YRFEeHi1uTzhc6nQwgPkisHVUz2kPAdyxEmELiqqRSGukonmo6evEZnJVyix1BSUBmLqnbNaCpyZa76c5Qys

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