Transaction not yet indexed

MUBt99CbF5fiC2wVWU9hMmbscqwBSkuV9UpjUPgKaMBBHGJv6Z6emRLvMo7AtQtoJmPN7EnZWfibsSmP3eiSPuL

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