Hi all. I recently acquired a 503cw which cosmetically is in very nice shape. Ive shot and developed a few rolls through it. Most recently a couple of negatives came back with a streak coming from the left side, looking identical and coming in from the same angle. At first I thought it might be flare as the direction of the sun was coming in at 45 degrees from that angle, but it hasnt affected all of these frames. Furthermore, one negative (not shown) from another roll has the same issue, but the lighting is coming in from different angle. Can anyone identify the cause or had experience with this issue? Thanks