Transaction not yet indexed

M12kvfbXbNeBLJ16UQNJsLffHDoQ9dMZ7MvN2DBvPepJtXDeW35Xbqn5iXGrcsx64MZYBv2y7BcB3cke2PMGFE2

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