SYMPTOM:
In Strategy Mobile 9.4.1, an empty row appears under the column headers of a grid that only contains 1 Attribute in the columns.

This only occurs if the grid is also targeted by a slice selector.
STEPS TO REPRODUCE:
Follow the steps below to reproduce the issue with Strategy Tutorial project:
CAUSE:
This is a known issue that occurs in Strategy Mobile 9.4.1 and has been logged with Technology.
ACTION:
This issue has been fixed in Mobile 9.4.1 iOS Update 2. Upgrade to this version or later to take advantage of the fix.
WORKAROUND:
Right-click on the selector > Properties and Formatting and check the "Apply selections as a filter" checkbox in the Selector tab.
This issue has been logged as Scopus ID 671009 and TQMS ID 810346.