Thanks team for your quick resolution. We appreciate it. The issue is fixed and working as expected. Now the pop up '?' icon is appearing right next to the field.
We have further found 2 additional issues with %.
#1) Same scenario that we mentioned in defect – This time attribute description is set to be displayed right to the input control and not as a pop up. Result is, attribute description is moving down to the next line even if there is a single character like ‘m’ mentioned in there.
#2) In version 6, there was Anchor option in % but not in version 7. Without anchor option, the attribute label belonging to second column gets displayed right next to attribute field belonging to first column. We have to add a new column to create gap between them.
Attaching screenshot for both issues.

