Transaction not yet indexed

5U16LwTC4yG1SyWdrrAmLyTrtLmR2yCJLUxPKHN5tLbTMCn42118PyTcuPK3pwuepmUGGJJeA2LDoD2pm5BKKDEq

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