Transaction not yet indexed

FKU8aPicRGbSpgpvwnhF5MDfnSHxDqyZ6qECtkCEkM1dKXXs6B43ArGySFHMN4JpDyvHwaaYGFoBKfKpE7MNPq5

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