Hi,
Can you post full definition of your filter.
It ssems you use some OR filters. If you also use AND, result may not be exactly what you expect as there is a priority : AND comes before OR
This means that isf your filter is 
A AND B OR C OR D
you will get sale as 
( A AND B ) OR C OR D
and not
A AND ( B OR C OR D )

Hi,
Thank you for asking. I use many different filters including OR and AND clauses. They all work fine, except with the new versions. Attached you will find an example that works fine, but not with new version. In this post I also demonstrated that using OR's on ID's, in the new versions it shows more than it should.

You have
name starts by 'A' OR name contains 'B' OR name contains 'C' OR name contains 'D' OR name contains 'E' AND wbs contains 'X' or wbs contains 'Y'
I thing you expect
(name starts by 'A' OR name contains 'B' OR name contains 'C' OR name contains 'D' OR name contains 'E') AND (wbs contains 'X' or wbs contains 'Y')
but you won't get that as AND has priority to OR (like multiplication has priority to addintion)
You will get
name starts by 'A' OR name contains 'B' OR name contains 'C' OR name contains 'D' OR (name contains 'E' AND wbs contains 'X') or wbs contains 'Y'

We haven't  changes filters management in new version.

We plan to impove Filters feature (under analysis with Users QLUB) to have possibility to add parenthesis, but this is not so easy

Note that in current version, to get 
(A OR B) AND (C OR D)
you must create filter
A AND C OR A AND D OR B AND C OR B AND D
(distributivity)