Transaction not yet indexed

UM4yvk5cAHyQwTaGDRbBWpWPscCu3y4jAFDaMysNTQs8UWDFbqyGQJLCLTkN8m7d7pmU4bGhPhmpuMoMS4YMLha

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