I am playing pokemon ultra moon currently. I used pkhex to change 3 of my pokemon's nature, and then started playing with that save file. After playing a while, I realized something that there is a bug on the game. Now everytime I catch a pokemon, it's always careful nature. I think because I used pkhex(I didn't use pkhex on this game previously), a bug entered into the system.Is there any way to fix it? Would be appreciated to let me know about this!
note: Right before I finished using pkhex, I just clicked on an alakazam that had careful nature(I didn't do anything with that). Then I closed pkhex. I probably don't think this has something to do with the whole problem, but just to clarify.