Transaction not yet indexed

28NtkmgSMdN5Jbc78ymZPcJAR9677FptcnkKUpApW4ydoYGgiWr8XsKMh1e8MyFqfFdc93mQQZQFCJkKwASLo5w1

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