Transaction not yet indexed

Am6c1EjUGnEU1MQLetUkUrUsYVMfWeDsU8bLWzqTp9xp4MySNTb7zCtENP5cqW46Wg5hP8DshyZBCtpqsGYRiWg

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