Transaction not yet indexed

a1KU388gpTqJt7VtcbVqtgPEGUJS6ZEXbB3442sCDPQbSw1RT2DryPANtFbpend1jkVoD4UXFfAB8jZfjWHXQR7

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