Transaction not yet indexed

UkU6aLb3P75fbzrNHffEPj5pkkHTwkMM7ju9iJBAc2MHMf9vWgiXwPMuQwJqCpqy2vdvhTZUJWc5F8WqCZY3LUx

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