Transaction not yet indexed

a1UMAquYdUBxFSQcsWdZwtGYbFx7e4cwXaLFFJxHCaZe6f5PyWfPF9EwuPCEwSDnvdZ5S3AX2YsZGBeHwHyAMu8

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