Transaction not yet indexed

UMSERknnYyWY76cppMPQUQrgE32zp7PCAooHUJS2DuZhxSfetoAQBHfgNrsUUftrqRZ8VFpvAiGAiWwfk2XkLsK

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