My portcullis is very whacked. The footings are angled in, so the figure is more shaped like a trapezoid than a square. The gate has a pronounced wave, like a syn-wave on frequency display.
Mine was the same. I've seen pictures of others and theirs was the same. I'm going to try a hair dryer on low to see if I can pull the feet out a bit (it seems like the bend is occurring at the top of the "bridge."