Signature won't update
 

I changed my sig a while back, and the new sig shows up in the preview window when I'm writing a post, but when I actually make a post, it uses my old sig (which is a broken image these days... Which is why I changed it).

Also had this issue in the past. I have absolutely no idea what fixed it but after a period of time (like, a few months) my signature updated. Shrug.