When building a filtered data extension X, based on a data extension A with data relationships (A to B and B to C). We can easily filter A on a field in B. We can also filter B on a field in C. We can also see fields in C, when filtering A. But using them as conditions in our filter, always returns 0 rows. Even though we can repeat same filtering using a query, and get a number of rows returned.
Shouldn't this be possible? We have contacted SFMC support, and can't get a clear answer back from them.