Transaction not yet indexed

AmPcpkcuruUC1D9d9P9nK4fdbm8m2BXxmB7Jt21MN9ktUij4p2LcdGug1Wfo4zW7MXMJ8YNFkmgsp2YaDYtCXTc

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