I imported my forum from classic 7.2. When I go into the group editor I see the correct number of people in the group. But when I click on the number I receive the following message:

Control panel message
select COUNT(t1.USER_ID) from ubbt_USERS as t1, ubbt_USER_PROFILE as t2, ubbt_USER_DATA as t3, ubbt_USER_GROUPS as t4 WHERE t1.USER_ID <> '1' and t1.USER_ID = t2.USER_ID and t1.USER_ID = t3.USER_ID and t1.USER_ID = t4.USER_ID and t4.GROUP_ID IN (5) and t4.GROUP_ID IN (5) and t4.GROUP_ID IN (5) and t4.GROUP_ID IN (5) and t4.GROUP_ID IN (5) and t4.GROUP_ID IN (5) and t4.GROUP_ID IN (5) and t4.GROUP_ID IN (5) and t4.GROUP_ID IN (5) and t4.GROUP_ID IN (5) and t4.GROUP_ID IN (5) and t4.GROUP_ID IN (5)GROUP BY t1.USER_ID ORDER BY t2.USER_DISPLAY_NAME ASC

Unknown column 't2.USER_DISPLAY_NAME' in 'order clause'

Hmm, I think this may have been something leftover from the beta version. Can you check like 146 of admin/membersearch.php, it should read:

$orderby = "t1.USER_DISPLAY_NAME";