Transaction not yet indexed

5M2ExstZBBJU6nzor4Py2tfRQqcZWBw81hWCz5sb6jb9aVi2vYS5srAr8HCSrXvuSPT4eE8ZpSAVeNGzZTzNXJRT

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