Transaction not yet indexed

MbmSEb4c63YkRKJC1vVVHhiL3B7a6xNFYnZCH7kAsGxKddZrcRvKSeKcsHgjDu2XsTcZcjZhjzKrUgb5B5SQAf5

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