The liquify filter, the adaptive wide angle, the lens correction, oil paint and vanishing point are gone in my Filter menu and I can't find it anywhere... I'm really non happy because I have to work and that tools are gone! Anyone can tell me why? Maybe I forget something!
What version of Photoshop? Did this happen after installing an update? What operating system.
Sounds like an update didn't take, and you may now need to reinstall Photoshop.