Transaction not yet indexed

Nb9NuMnbxK7ebrKHxScKhekweVbf8jfK2mBNVsZPBDEdWGCqMHqoqUm2isDk1SgLEmFKYhn1f2sgLSMB615JCs8

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