Transaction not yet indexed

1mbuCobRCYc3H91WNWPAZ9Cc72M97yyM8kzEhwNV8Mj8hztT58zy1VjRabMqmca42Fo7vYuwSAKKGJkFFrGJsnS

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