Since you guys are still working on the game's rollback netcode. You might want to fix this issue while you're at it.
Performing a half circle motion on keyboard isn't possible in this game because the down inputs fails to register during the motion.
Code Mystics, you guys dealt with keyboard issues on KOF98UM in the past. Keyboard adjustments needs to be applied in this game as well. Maybe let SNK know, they might want to adjust this across more platforms. KOF15 doesn't have this issue so why should this game?