I have an MMO mouse that I use for other games. When I started playing Lost Ark, I used this same button configuration which binds the 12 buttons to CTRL+F1-12 in order to quickly access some things. In the game UI the keybind shows up as just the F key, but it worked just fine anyway.
After taking a break for Elden Ring, I came back to the game and these buttons stopped working… sometimes. The quest quick use button I have bound to the CTRL+F5 keys still works, but I have normal potion bound to CTRL+F2 and the class special skills to CTRL+F1 and CTRL+F3. For whatever reason these buttons don’t do anything. If I change the keybinds then rebind them using the same mouse buttons, the game recognizes this just fine, it just doesn’t let me use them while playing the game. I don’t want to have to rebind my mouse buttons or find new keybinds that work for me in Lost Ark. Has anyone encountered this and found a fix? It’s just incredibly weird that some of the keybinds work and others don’t and nothing I’ve tried has fixed it so far.