Ah okay, that makes sense! Apologies for the sort of redundant post, then. I think I assumed that the word filter only applied to the most recent generation because of mons being flagged in old gens despite the word filter not being the same then, and it did not occur to me that old filters like the filters on 3DS might still be flagged for the purpose of indicating to the user that it might affect the transferring process. Though that does make me wonder if there's any reasonable way to make the error more descriptive/helpful. I don't know enough about the backend of this stuff to say. Anyways, thanks for the quick response and clearing things up!