REPRODUCTION STEPS
1. Enable quick search per KB41443
2. Create a simple report with Year Category Cost
3. Enable page-by axis under "Tools" menu
4. Add attribute via search box in page-by axis

5. After adding one attribute, user is not able to search another one in Internet Explorer. The feature works in Firefox and Chrome browser.
CAUSE:
This is a known issue of Strategy Web.
ACTION:
Currently this issue is still being reviewed for feasibility by our Technology team and it is not scoped for any upcoming scheduled Strategy release.