Performing 'Filter out' on a list still previously filtered with any condition shows inconsistent records instead of 'No records available'Issue Filtering a list by condition fields "Service now product" and "Keywords" may return only part of the expected results. For example, starting from a list of two records tagged as "Formal Documentation" in 'Article type' field, when filtering this value out, additional records are listed, that did not appear during the initial filtered search.CauseThis occurs because of the IDF Boosting. The search functionality is such that it gives the most probable result in the available data set.ResolutionPerform 'Debug Text Search' to understand the IDF Boosting and the text fields getting indexed. The identified records show when using 'filter out', based on IDF Boosting settings. This is the expected behaviour.Related LinksIDF Scoring