Hello Rafael,
1)
Please provide the output of dbm command 'sql_execute select * from users'
2)
Attach the DBUPDATE log to the thread.
3)
Let me know the complete version and build of the current MaxDB 7.7 and the version you are trying to upgrade to - I would like to see if the issue is reproducible in our internal systems.
Regards, Yashwanth