FreeNAS 9.3 update 201501150211 fails!

[unca_NAS]

After updating the OS using GUI to the most recent version (afaik 201501150211) following errors occur on GUI
- SYSTEM General, Boot, Email, System Dataset give following error

Code:

{"events": [], "error": true, "message": "Error: table system_advanced has no column named adv_boot_scrub"}

- SYSTEM Advanced load top bar and expand-collapse -buttons to the inner frame

Consulted manual, didnt find a how-to conserning a OS rollback or downgrade. No updates are visible on the "Pending Updates". Manual Update-button triggers an error:

Code:

{"message": "Error: no such column: system_advanced.adv_boot_scrub", "events": [], "error": true}

/data/update.failed:

Code:

ps: empty file: Invalid argument
ps: empty file: Invalid argument
ps: empty file: Invalid argument
ps: empty file: Invalid argument
ps: empty file: Invalid argument
ps: empty file: Invalid argument
ps: empty file: Invalid argument
ps: empty file: Invalid argument
ps: empty file: Invalid argument
ps: empty file: Invalid argument
ps: empty file: Invalid argument
Running migrations for api:
- Nothing to migrate.
- Loading initial data for api.
Installed 0 object(s) from 0 fixture(s)
Running migrations for freeadmin:
- Nothing to migrate.
- Loading initial data for freeadmin.
Installed 0 object(s) from 0 fixture(s)
Running migrations for support:
- Nothing to migrate.
- Loading initial data for support.
Installed 0 object(s) from 0 fixture(s)
Running migrations for network:
- Nothing to migrate.
- Loading initial data for network.
Installed 0 object(s) from 0 fixture(s)
Running migrations for services:
- Migrating forwards to 0157_auto__del_field_iscsitarget_iscsi_target_logical_blocksize.
> services:0156_auto__add_field_iscsitargetextent_iscsi_target_extent_blocksize__add_f
! Error found during real run of migration! Aborting.

! Since you have a database that does not support running
! schema-altering statements in transactions, we have had
! to leave it in an interim state between migrations.

! You *might* be able to recover with:
! The South developers regret this has happened, and would
! like to gently persuade you to consider a slightly
! easier-to-deal-with DBMS (one that supports DDL transactions)
! NOTE: The error which caused the migration to fail is further up.
Error in migration: services:0156_auto__add_field_iscsitargetextent_iscsi_target_extent_blocksize__add_f
Traceback (most recent call last):
  File "/usr/local/www/freenasUI/manage.py", line 42, in <module>
    execute_from_command_line(sys.argv)
  File "/usr/local/lib/python2.7/site-packages/django/core/management/__init__.py", line 399, in execute_from_command_line
    utility.execute()
  File "/usr/local/lib/python2.7/site-packages/django/core/management/__init__.py", line 392, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "/usr/local/lib/python2.7/site-packages/django/core/management/base.py", line 242, in run_from_argv
    self.execute(*args, **options.__dict__)
  File "/usr/local/lib/python2.7/site-packages/django/core/management/base.py", line 285, in execute
    output = self.handle(*args, **options)
  File "/usr/local/lib/python2.7/site-packages/south/management/commands/migrate.py", line 111, in handle
    ignore_ghosts = ignore_ghosts,
  File "/usr/local/lib/python2.7/site-packages/south/migration/__init__.py", line 220, in migrate_app
    success = migrator.migrate_many(target, workplan, database)
  File "/usr/local/lib/python2.7/site-packages/south/migration/migrators.py", line 256, in migrate_many
    result = migrator.__class__.migrate_many(migrator, target, migrations, database)
  File "/usr/local/lib/python2.7/site-packages/south/migration/migrators.py", line 331, in migrate_many
    result = self.migrate(migration, database)
  File "/usr/local/lib/python2.7/site-packages/south/migration/migrators.py", line 133, in migrate
    result = self.run(migration, database)
  File "/usr/local/lib/python2.7/site-packages/south/migration/migrators.py", line 114, in run
    return self.run_migration(migration, database)
  File "/usr/local/lib/python2.7/site-packages/south/migration/migrators.py", line 84, in run_migration
migration_function()
  File "/usr/local/lib/python2.7/site-packages/south/migration/migrators.py", line 60, in <lambda>
    return (lambda: direction(orm))
  File "/usr/local/www/freenasUI/../freenasUI/services/migrations/0156_auto__add_field_iscsitargetextent_iscsi_target_extent_blocksize__add_f.py", line 22, in forwards
    for target in orm['services.iSCSITarget'].objects.all():
  File "/usr/local/lib/python2.7/site-packages/django/db/models/query.py", line 96, in __iter__
    self._fetch_all()
  File "/usr/local/lib/python2.7/site-packages/django/db/models/query.py", line 857, in _fetch_all
    self._result_cache = list(self.iterator())
  File "/usr/local/lib/python2.7/site-packages/django/db/models/query.py", line 220, in iterator
    for row in compiler.results_iter():
  File "/usr/local/lib/python2.7/site-packages/django/db/models/sql/compiler.py", line 713, in results_iter
    for rows in self.execute_sql(MULTI):
  File "/usr/local/lib/python2.7/site-packages/django/db/models/sql/compiler.py", line 786, in execute_sql
    cursor.execute(sql, params)
  File "/usr/local/lib/python2.7/site-packages/django/db/backends/util.py", line 53, in execute
    return self.cursor.execute(sql, params)
  File "/usr/local/lib/python2.7/site-packages/django/db/utils.py", line 99, in __exit__
    six.reraise(dj_exc_type, dj_exc_value, traceback)
  File "/usr/local/lib/python2.7/site-packages/django/db/backends/util.py", line 53, in execute
    return self.cursor.execute(sql, params)
  File "/usr/local/lib/python2.7/site-packages/django/db/backends/sqlite3/base.py", line 452, in execute
    return Database.Cursor.execute(self, query, params)
django.db.utils.OperationalError: no such column: services_iscsitarget.iscsi_target_logical_blocksize

EDIT: seems that its a bugg that has already been reported in - with a different version though...