Transaction not yet indexed

28LET6yamCUcSyLAZh1MrjrLfw4dVNkszHXnVNUUxSuqXXmudwARKZ3RcwAtgdfbsEo9GS6fgtvAGHwUbUPyqMfT

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