UICollectionView reload cells not working though is dequeued

Hi all,

I encountered a weird behavior today : I've got a collectionView, a struct file (with the proper Hashable protocol implemented). Everything works fine ... the first time.
When my model changes, I trigger a reload using the same code as the first time :

Code Block 
datasource.apply(snap, animatingDifferences: animatingDifferences, completion: completion)

I do enter in the datasource'z completion block. The cell is dequeued, I do enter in the configure method (where I change some stuff). My model is properly updated too.

Code Block 
let dataSource = DataSource(collectionView: collectionView) { [weak self] (collection, indexPath, model) -> UICollectionViewCell? in
            guard let cell: VehicleCell = collectionView.automaticallyDequeueReusableCell(forIndexPath: indexPath) else { return nil }
            cell.configure(model)
            cell.vehicleDelegate = self?.vehicleDelegate
            return cell
        }

Code Block 
    func configure(_ vehicle: Vehicle) {
        self.vehicle = vehicle
        print("🚖 \(vehicle.model) - \(vehicle.isCurrentVehicle ? "👍" : "👹")")
    }

If I log the model in the configure method, I do have the good values ... but the cells are never updated

Code Block 
🚖 Coupé Série 1 - 👹
🚖 207SW - 👍
🚖 207SW - 👍
🚖 Coupé Série 1 - 👹
🚖 Coupé Série 1 - 👍
🚖 207SW - 👹
🚖 Coupé Série 1 - 👹
🚖 207SW - 👍

How can a cell can be updated and configured and not update visually ?

Thanks