Is this ^ where you are dragging items to?
ohhh no, that bottom part didn't appear for me! do I click the top row and then that shows up?
Does your window look something like this? You may have to enlarge your game window (drag the borders), or make it fullscreen, or lower the Interface Pixel Scale in Settings.
You should still be able to drag items to the gray boxes at the bottom of the craft window:
Yeah idk bc the next time I played the game it worked just fine so either there was something wrong with the screen before or I just didn't notice them and it was my own fault XD sorry for bothering you and thanks for the help, all's good now!