Player is launched while jumping from projectile

I think I may have discovered a bug. I have created a bullet that shoots very slowly, if I shoot the bullet into something, and then climb onto the bullet, and jump, I am launched as if the bullet has transferred it’s original momentum (it is now holding still) to the player. Attached is a quick GIF to demonstrate.

As you can see, I am creating clusters of bullets, and when I jump while standing on them, it moves me in the direction that I shot the bullet, I am holding completely still when I jump, but it moves me. Is there a reason this is happening?

http://s1285.photobucket.com/user/jamendx3/media/Projectile%20Launching%20Player_zpss52yz2g4.gif.html

Hi ,

Can you show me the blueprint you have setup for your projectile? Do you have any physics set up on your player or your projectile?

I do not have any blueprint nodes added to my projectile, I just spawn my projectile (My projectile has a projectile movement component) , I also do not have any physics set up besides the player defaults.

Does this occur if you spawn only one projectile and jump on it or is it only whe you have multiple projectiles spawned at the same time?

Both only one, and multiple. Attached is the FPS template that I replicated this with (in UE 4.8), here is exactly what I did after creating the template: Made a bullet BP, added a collision volume (blockAllDynamic), added a rectangle to represent the bullet, added a projectile movement component and set the inital speed to 1000. Next, I went into the character blueprint, swapped out the spawned actor from the yellow projectile to a bullet BP I made, removed unnecessary sounds that play when shooting, and set the projectiles spawn location forwards a bit. Now if I play the game, and shoot somewhere, and then get on top of the projectile, and jump, it launches me as if I inherited the projectile’s initial velocity.

Here is a download link to the project (28 MB): https://www.mediafire.com/?5ie17ock8onpx69

Unfortunately our internal firewall is preventing me from accessing that download link for security reasons. Can you upload the project to a trusted FTP service such as Dropbox and send the link? I’ll be happy to take a look!

Sure thing: Dropbox - Error

Hi ,

I was able to reproduce this and have entered a bug report, UE-18435 to be assessed by the development staff.

I am trying the same thing and after awhile of playing around I just simply deactivated the projectile after collision and it then stopped ‘pushing’ the character when I tried jumping.
I know this is an old post but who knows.