Library Update/Rescan Fails Due to Null AuthorEntity

[sleighton]

Trying to understand why I am getting 1,740 of these error messages in my log (out of 2,000 books) when I run the task 'Refresh Metadata'.

2025-11-21T09:39:41.932438-08:00 scott-NucBoxG3P e8027faeaa63[1158]: 2025-11-21T09:39:41.931-08:00 ERROR 10 --- [booklore-api] [    virtual-295] c.a.b.s.library.LibraryRescanHelper      : Failed to update metadata for book id=3628 path=/mnt/Elements14T/Books/James Patterson/Unbelievably Boring Bart/James Patterson - Unbelievably Boring Bart.epub: Entry for instance of 'com.adityachandel.booklore.model.entity.AuthorEntity' has a null identifier (this can happen if the session is flushed after an exception occurs)

Can someone explain what this is telling me needs to get fixed?