Transaction not yet indexed

RE66JaYbFEm5ZgiTmP6mDzwzYmsGXgameiVdB5tVCpiJ2umX8Mb1Z3xBwbDMYMkbcXnbHEGibCXYS8ns1mCsBjQ

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