Transaction not yet indexed

Am7Sj7mk9PAeq9NK5tpWoQGAtMaDwTDUvC6dRGDtcwxvzvYBoxV8F3Vi8sdFPkFscK1qMWJZLxqEcN626WtyT3Z

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