Transaction not yet indexed

Vk91reqAEZ2v53dML4k3RJAN3equozdGNvvZwYZ3eLG38q65TqPtEWRLMQwUfrd2gmCZMSV9EApgkZGfnSPtUv4

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