Transaction not yet indexed

21MMkCbJFQgM8kBLCp2eXK2kN911FTwv7gUwPAM8ZPTrAhC5zqFdHN3vnGzjCe7nSibdaaC4G3MyuRCkQ4AoSBE6

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