great! i'm very glad to help you! i also wanted to ask you: is “1” in your cube also incorrectly rotated, or I am just unlucky to buy a cube from a defective batch?
I got the same impression about the puzzle. I spent 4 (!) days on it and now cube just stands on the shelf and reminds me about my "small victory" ( this sudoku cube was my spontaneous purchase. the shop assistant knew how to interest me and said that none of the customers had ever solved this cube. I decided to prove everyone that I would be the first and bought it). I also haven't learned how to solve sudoku directly on a cube, even according to youtube tutorials.