Hello, I’ve bveen running UE for a month. I’m using UE4.27.2 because my laptop specification isn’t good. I followed the course(the course is UE5 course), but the projectile keeps flying backward rather than forward. The camera’s viewpoint follows well, but it’s the same even if the impulse value is negative. I’ve been holding on to this issue for 4hours. Please help!!!
Hey @sungmin_0203! Welcome to the forums!
So there are a few things to consider!
If the projectile movement component on the projectile actor is set to a NEGATIVE value, it will go backwards. A straight forward moving projectile should have a positive X, 0 Y, 0 Z on the movement values.
If the spawn point’s forward (the RED arrow on the movement widget) is not in the direction you want, it won’t go that way.
If the spawn code has an incorrect position, it could fire the incorrect direction.
Check those things and then if that doesn’t work try to get us some visuals of your code! 
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Hey @sungmin_0203!
Did you ever get your projectile code figured out? Let us know how it went!