Error when logging into P6 Professional - main application window is not shown
If the user logins to P6 and the main application window is not shown, and pressing Windows Key + Space then X, or Windows Key + Left Arrow/ Right Arrow won't work, it is possible that the user profile has become corrupt.
In a nutshell, this is the query:
Update
userdata set user_data = null where topic_name = 'pm_settings' and
user_id in (select user_id from users where user_name =
'<username>');
If this Oracle, you must commit your changes.