Transaction not yet indexed

MamAF8K3peXBA71we1cF6Uae8jcYmeJUYNryv4G5hgBPikPMdLmJzMrQrkPGu18mCFLvfRxuiGVFMqAzxuBC1Xa

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