Transaction not yet indexed

ZMb8M1fcLCwC1sHj2i63SrPqUQsUbDwV8CKmspV3bQTPLxFGsv3VEJdeMBhVDPTmMy33KcjuepRQGQYUspYeMmZ

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