Transaction not yet indexed

AMtFUUaRAQfkh22CMV91MBGUGPyoh7uTb5CE3Pk27pdQHRiKGz43WUUKQqdgmai4fYL8oWHrpyhixVsL2dZQEdp

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