Transaction not yet indexed

MEX3mqvXFebShD13zyrKeb4MBPfEf4BER8ETXvHWrMXxA4RMr4nDsxuiLyfLCdhGJjmAFmHSPBFoAUdPEKgfFmq

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