I'm beginning to suspect that overtraining might be the cause, but I'm not entirely sure anymore. Flux training can be quite unpredictable, especially in the early stages, and the guides often give conflicting advice. In my personal photo set, vertical lines keep showing up, even after three attempts. I’m starting to think there may be an issue with my training image sources as well. Whether I train for 1,000 steps or 3,500, the lines persist. Oddly enough, I trained two other Loras using different subjects, and those turned out perfectly fine, which makes the situation even more confusing.