Plex server errors around that same time.
Dec 10, 2023 15:48:59.314 [0x14f684dd7b38] ERROR - [Req#21df00f] Unknown metadata type: folder
Dec 10, 2023 15:48:59.516 [0x14f687c08b38] ERROR - [Req#21df074] SQLITE3:0x80000001, 1, no such column: None in "select count(*) from (select distinct(metadata_items.id) from metadata_items join metadata_items as parents on metadata_items.parent_id=parents.id join metadata_items as children on
Dec 10, 2023 15:48:59.517 [0x14f687c08b38] ERROR - Got exception from request handler: sqlite3_statement_backend::prepare: no such column: None for SQL: select count(*) from (select distinct(metadata_items.id) from metadata_items join metadata_items as parents on metadata_items.parent_id=parents.id join metadata_items as children on children.parent_id=metadata_items.id where metadata_items.library_section_id in (1) and (metadata_items.index=None and metadata_items.metadata_type=3 and metadata_items.parent_id=40901) )
Dec 10, 2023 15:49:10.307 [0x14f68b466b38] WARN - Held transaction for too long (/data/jenkins/server/3537899744/Statistics/StatisticsManager.cpp:301): 0.160000 seconds
Dec 10, 2023 15:49:25.618 [0x14f687c08b38] ERROR - [Req#21df1a7] Unknown metadata type: folder