4.6 preview has killed my projectiles

Hello everyone,

I just updated to 4.6 preview and when i stop preview i get these errors :

In 4.5.1 everything worked correctly.This is one of my projectiles setup:

What changed from 4.5 to 4.6 that causes these errors?

Thank you.

I’m just guessing here, but you may need to place a scene component as root instead of flipbook.

Thank you for suggestion but unfortunately it is still same. question is what they changed and what i must do to correct this, since it was working perfectly in all previous versions of engine.

I’d say you need a PrimitiveComponent as root rather than a scene component (primitive component being a subclass of scene component). What happens if you make box component root?

Hey ,

When I play a slightly older version of your project converted to 4.6, it looks like Fireball_BP is not moving; they just sit there where spawned until their lifetime ends. I was able to fix this by simply duplicating ProjectileMovement component, deleting original component (Fireball_ProjectileMovement), and replacing call to component in Down Spawn Fireball function inside Fireball_Spawner_BP.

I don’t get error you posted an image of, though I suspect it’s simply because I’m using an older version of your project. Try duplicating/replacing that component and let me know if there are still errors after that. I’m going to look into this a bit further and enter a bug if we both see same thing. Thanks!

I followed your instructions with all my projectiles and now they work again!Great job once again !

Go ahead and file it as a bug , and lets hope it will be an easy fix for guys.

Thanks !

problem appears to involve not having a PrimitiveComponent as root when you brought project over from 4.5.1, in which this was not an issue. Unfortunately, adding a PrimitiveComponent and making it root does not solve issue, and only replacing ProjectileMovement component will fix things.

I have entered a bug report for this issue (UE-5548) and I will let you know when I see an update on it. Thanks for report!

Thanks for report, this was fixed and should make it to official 4.6 release.