CTD "Renaming an object (...) on top of an existing object (...) is not allowed"

Development Programming & Scripting
1

I get this crash when moving my blueprint around.

The blueprint attaches several childactors in its construction script (depending on a parameter)… since the child-actors names are given in the error I assume it has something to do with this…

I submitted the crash reports too, but would here if this has an easy fix maybe.

The crash is also reproduceable and happens with the same names.

My two blueprints are “PlanetarySystem” and “Planet”

Inside the construction script of PlanetarySystem I create a set number of planets (set via a variable)

In the Planet blueprint I create a SplineComponent (points are calculated to model the orbit) and then create SplineComponentMeshes around this spline. This all works so far.

When I then move the planetarySystem around in my level after some movements the editor just crashes.

2

Hi Rouby,

I attempted to reproduce this but so far I haven’t gotten your results. So I have a few questions for you.

Which version of the editor are you currently using?

Is this reproducible in a new project as well?

Also, could you give me a more detailed steps on how to create the blueprint? Please feel free to use as many screenshots as needed.

3

I have updated my original bug report

4

I still can’t get your results but I’m sure your setup is much more complex than my test bed. Would you be willing to send me a link to download your project from Dropbox or Googledrive? You can Private Message the link to me on the Forums if you like.

https://forums.unrealengine.com/

Also, could you include your dxdiag, .LOG, and .DMP files. Below is a link to how to find that info if you need it.

5

https://drive.google.com/file/d/0B-6WMKNI8ugYMXpKS1RIMWQyYjA/edit?usp=sharing

To reproduce the crash, just move the PlanetarySystem Blueprint around in the scene

6

I’m unsure of what could be causing the crash, so I have submitted your project to our developers to look into further. It is TTP# 344210 in our tracking software. I will post back here as soon as I have some info for you.

7

Thanks for the repro, took a bit to figure out quite what was going on, but you stumbled on a nasty little bug.

I’ve submitted the fix for this. You can see it here: https://github.com/EpicGames/UnrealEngine/commit/90be8307a8457221fbb5df73a409b20e490e70e9

8

Glad this got solved. Will this fix be in 4.5?

9

Hi Rouby,

We can’t guarantee that it will be in 4.5, but there is a chance that it may make it in.