When applying a filter, if you do not make a selection in each field before clicking Apply, the filter will fail, even when the apparent selection is pre-provided. (FilterBug1.png) While the filter fails, the system does indicate that a filter is currently applied. I noticed this first when attempting to filter Income values. If you add a criterion of "Income," the amount field defaults to a grayed-out "0" and the logical test of "equals." My expected use case was to select "greater than" and simply click Apply. Using the system this way results in the Filter dialog closing; the indicator that the filter is applied shows up, but the records are not filtered to match. Additionally, the "Clear" button does not appear, though the " Clear filter and show all transactions" text does. (FilterBug2.png) Understanding that the grey "0" could be interpreted as having no value provided, I tried this with another Filter, this time on "Category." When adding a category filter, the default appears to be valid as "Uncategorized," which would be a useful default. However, the behavior here is the same. If you follow the exact steps but use the drop-down menu to pick Uncategorized (which seems to make no change), then the filter will apply as expected. I believe the solution is to simply apply a real "default" value to the field and possibly add an error handling task for attempting to apply a filter if no value is specified.