Got it, with this approach you only filter the initial load. The replication will not be filter, which means whenever an update/insert is now performed in your system the record will be replicated. Also keep in mind, if there is an update and at this point in time, there is no record on the target with the same keys, SLT will switch to insert.
You have to create now an additional filter in LTRC with the same conditions. This will filter also the replicated records.
Best, Tobias