Transaction not yet indexed

MN666Cbn4aixSzwjkKr2wJwDUPREL9pAPL2M2CYAr5Uhkz7KYNREzFnLyNX31kA7jTcRwfMZSUeiDKYusUXmi62

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