Transaction not yet indexed

mKkDGbxKud3FNPWjkgHL6iPdb3mDWJS6Y3oKn1KAzLrDWQxqApEXSUptY8e9MBvbSXndZRK1MGWn2hFYJb2fPDw

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