Transaction not yet indexed

MtzSCoQqpLBx3Jd2VxuykVEGqAKRR9XJTHd3o7MS6u2hRS5f6vbUXgGqJtmamnPHYwrtsTn3DCcK99g7dYQA3Gc

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