1.20.1 forge. When pressing alt or any alternate key the menu does not open. You also cannot use tool cycle to change bit size. As such all tools and bits are permanently stuck in single bit mode. Doubled checked to ensure no other key binds were overriding, and checked for mod incomparability by creating separate instance with C&B alone. I also tried back dating, no versions of the 1.20.1 update work. No fix found.