I tray developed two 4x5 negatives of the same shot and ended up with wide vertical bands as you may be able to see in this example. At first I thought it was the scanner, but looking closer, I realized it's in the negatives. Each has the same bands in the same areas. Leads me to believe it's exposure somehow. I don't see how otherwise two negatives could end up with the same bands after tray processing. Each negative was developed separately.