Transaction not yet indexed

668MSXENUwpbwYTmfiBUbj7QbhGf2GFCh4knn9LuDzoTQDvRmpVydAzdheYw8hL4k1ZPiPm9bgDTCkT9PmZP5AD5

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