Transaction not yet indexed

5B521AP1398vcuqoxfVPYtV2zf4JiRLmAtucs4R5rKvGgaQPQ3nwURo7UBX9cSP3KDWfs7r9HvDBrWvyuFbppebL

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