SwiftData data crashes with @Relationship

I've noticed that SwiftData's @Relationship seems to potentially cause application crashes. The crash error is shown in the image.

Since this crash appears to be random and I cannot reproduce it under specific circumstances, I can only temporarily highlight that this issue seems to exist.

@Model final class TrainInfo {
    @Relationship(deleteRule: .cascade, inverse: \StopStation.trainInfo)
    var stations: [StopStation]?
}

@Model final class StopStation {
    @Relationship
    var trainInfo: TrainInfo?
}

/// some View

    var origin: StopStationDisplayable? {
        if let train = train as? TrainInfo {
            return train.stations?.first(where: { $0.isOrigin }) ?? train.stations?.first(where: { $0.isStarting })
        }
        return nil
    }

    // Some other function or property
    func someFunction() {
        if let origin, let destination {
            // Function implementation
        }
    }