There is a different error when running quota sync for a specific project, note that this need an actual volume to exist for that project in order to trigger the error. Not sure yet if this is related or not.

$ /opt/stack/data/venv/bin/cinder-manage quota sync --project b0bd58002f3141cd90d7066e74cc5c1b                                                                     
INFO dbcounter [None req-f6f3e9f8-106a-48c0-b377-d1248b03e31f None None] Registered counter for database cinder                                                                                
DEBUG oslo_db.sqlalchemy.engines [None req-f6f3e9f8-106a-48c0-b377-d1248b03e31f None None] MySQL server mode set to STRICT_TRANS_TABLES,STRICT_ALL_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FO
R_DIVISION_BY_ZERO,TRADITIONAL,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION {{(pid=412126) _check_effective_sql_mode /opt/stack/data/venv/lib/python3.11/site-packages/oslo_db/sqlalchemy/engines
.py:342}}                                                                                                                                                                                      
DEBUG dbcounter [-] [412126] Writer thread running {{(pid=412126) stat_writer /opt/stack/data/venv/lib/python3.11/site-packages/dbcounter.py:102}}                                             
Processing quota usage for project b0bd58002f3141cd90d7066e74cc5c1b                                                                                                                            
CRITICAL cinder [None req-f6f3e9f8-106a-48c0-b377-d1248b03e31f None None] Unhandled error: AttributeError: module 'cinder.context' has no attribute 'session'                                  ERROR cinder Traceback (most recent call last):                                                                                                                                                ERROR cinder   File "/opt/stack/data/venv/bin/cinder-manage", line 8, in <module>                                                                                                              
ERROR cinder     sys.exit(main())                                                                                                                                                              
ERROR cinder              ^^^^^^                                                                                                                                                               
ERROR cinder   File "/opt/stack/data/venv/lib/python3.11/site-packages/cinder/cmd/manage.py", line 1151, in main                                                                               
ERROR cinder     fn(**fn_kwargs)                                                                                                                                                               
ERROR cinder   File "/opt/stack/data/venv/lib/python3.11/site-packages/cinder/cmd/manage.py", line 385, in sync                                                                                
ERROR cinder     self._check_sync(project_id, do_fix=True)                                                                                                                                     
ERROR cinder   File "/opt/stack/data/venv/lib/python3.11/site-packages/cinder/cmd/manage.py", line 511, in _check_sync                                                                         
ERROR cinder     discrepancy &= self._check_project_sync(                                                                                                                                      
ERROR cinder                    ^^^^^^^^^^^^^^^^^^^^^^^^^                                                                                                                                      
ERROR cinder   File "/opt/stack/data/venv/lib/python3.11/site-packages/oslo_db/sqlalchemy/enginefacade.py", line 1001, in wrapper                                                              
ERROR cinder     return fn(*args, **kwargs)                                                                                                                                                    
ERROR cinder            ^^^^^^^^^^^^^^^^^^^                                                                                                                                                    
ERROR cinder   File "/opt/stack/data/venv/lib/python3.11/site-packages/cinder/cmd/manage.py", line 566, in _check_project_sync                                                                 
ERROR cinder     reservations = self._get_reservations(                                                                                                                                        
ERROR cinder                    ^^^^^^^^^^^^^^^^^^^^^^^                                                                                                                                        
ERROR cinder   File "/opt/stack/data/venv/lib/python3.11/site-packages/cinder/cmd/manage.py", line 440, in _get_reservations                                                                   
ERROR cinder     db_api.model_query(                                                                                                                                                           
ERROR cinder   File "/opt/stack/data/venv/lib/python3.11/site-packages/cinder/db/sqlalchemy/api.py", line 301, in model_query                                                                  
ERROR cinder     query = context.session.query(model, *args)                                                                                                                                   
ERROR cinder             ^^^^^^^^^^^^^^^                                                                                                                                                       
ERROR cinder AttributeError: module 'cinder.context' has no attribute 'session'                                                                                                                
ERROR cinder