SYMPTOM:
A user can use the search box of a report filter to speed up the process of selecting an attribute element from a large list, as seen below:

However, when using a report based on an MDX cube, this search box is not available in Strategy Web 9.4.1, as seen below:

Furthermore, Strategy Developer 9.4.1 does show the attribute element search feature for MDX reports, as seen below:

CAUSE:
This is a known issue with Strategy Web 9.4.1.
ACTION:
Strategy will continue to investigate and post updates as soon as they are available.