UE 5.5 - Heavy ghosting offset of my moving object

[Pataloon]

Hi!

I have an issue with my current project, a have huge ghosting visible on the right of any moving element, see for yourself.

I tried all the Anti Aliasing methods and there is still that weird thing.

Thank you for any help you can provide!

[nande]

i’ve seen that issue before on the forums, with a character. but i can’t remember the solution sorry. i think it might be due to drivers.
i think it was related to motion blur maybe.

[nande]

500×500 2.84 KB

I think something is off with your characters motion vectors, and that it is likely being generated by something you are doing in your animation. We can confirm this by disabling Anti-aliasing, motion blur and any other temporal effects like Lumen temporarily. Then, if the ghost disappears, we can be confident that the motion vectors are wrong, causing the compensation techniques used to prevent blur are not working as intended. You can also use the motion vectors debug visualizers but they ca…

found it. last person suggested is motion vectors.

also, does the thing happens on shipping builds? or only on editor?
does it happens when highdpi is enabled for the editor (not the build)
but again it may be your drivers.

[SanderK]

I ran into similar ghosting issues before here’s a quick checklist that helped me fix it:

• Motion Blur:
  Try turning it off in your Post Process Volume or Project Settings (Rendering → Motion Blur = 0).

• TSR / Temporal AA:
  Switch to FXAA or MSAA, TSR can cause heavy ghost trails on moving objects.

• Nanite:
  If your mesh uses Nanite, try disabling it temporarily this can also cause ghosting with fast-moving Nanite meshes.

• Camera Lag:
  If you’re using a Spring Arm, disable Camera Lag and set Lag Speed to 0.

• Materials:
  If the mesh uses World Position Offset in its material, make sure Disable Depth Test is off and correct usage flags are enabled.

Hope one of those solves it.

[Bozzified]

I’m coming late to this issue but I had this issue happen as I’m working on the project now..

As everyone said I thought the motion vectors were bad. It was a simple mesh as a part of the the whole BP mesh. I was banging my head for hours. In MRQ I see bizzare ghosting and nanite is off, everything is ok.. I turned off all AA, with it, without it, with high temporal, everything was a dud.

At first I thought it was also baking pivot mesh on when importing meshes as it might be badly calculating the motion vectors off the scale of my Blender import but that was not it.

The issue was actually and I don’t really know how it happened, when I imported the whole truck and made a blueprint, the problematic part of it that was causing ghosting, was imported into blueprint as child actor component and under it Child actor class was the static mesh.. this was causing bad motion vectors.

Just want to give a heads up for anyone who faces this issue. Make sure you check this.. when I removed the it and added it as a simple static mesh component the ghosting was gone.

I wish I would have looked into the BP sooner I guess and saw it. But that’s another thing to check. I’m on UE 5.7.3 now.