I ran into the very same issue today. Turns out SwiftData does not support force-unwrap in Predicate. So you can try using if-let or .flatMap. Using if-let worked for me, so something like this may work for you: private struct TransactionItemsView: View { init(journal: Journal, budgetMode: Bool) { let journalID = journal.id! _entries = .init(filter: #Predicate { if let journal = $0.journal, let id = journal.id { id == journalID } else { false } }, sort: \.date, order: .reverse) } @Query var entries: [Entry] ... } I did submit feedback on this: FB13202879