Yeah Litecoin has a timelock feature and you did it correctly, your transaction will be included on the 2,615,000 block, currently the latest block is 2,524,276, the difference is 90,724. The average of Litecoin's block is 2.5 minutes, so it's expected you will receive the coins after next 5 months.

Each block explorer has their own rule, some not include time lock transaction due to it's still long, some not include unconfirmed transaction etc.