Transaction not yet indexed

UM68MnsvhcMqJDdEXCCuTfePaJJhhWpjspmFFo6AebGRFsYoh637kjpHzm5zQLMz2KF58N2ff5JUjfeYPMRNFu8

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