Transaction not yet indexed

ACkL2PSpxjJ3QM4ie23FnH2wKBWFENVbeTNM218RUAxjZ7FStWfd2tEnM32BbnoYDaHcFfYoW2bi1oC7vr3XHmZ

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