Unreal Editor freezes after completing packaging a project

Hey there,

Recently started encountering this issue when packaging my project. I couldn’t find any threads where people had a similar issue. Not sure what started it.

When packaging my 5.5 project I noticed it seemed to be taking a really long time. When I checked the location of the package project I saw that the files were there.

I was able to launch the game and it seemed like everything was functioning.

Windows Task Manager doesn’t seem to recognize Unreal as being frozen, but I can’t click on any of the windows. Even the spinner will be completely stopped.

When I force close the engine it goes away almost instantly. Looking at the logs doesn’t reveal anything unusual.

It’s not severe, but it is super annoying.

So basically - Unreal appears frozen while packaging a project - when it’s complete there is no notification and Unreal can no longer be interacted with and must be force quit - Project is packaged correctly with no obvious issues - logs seem normal with no errors.

Any help would be appreciated.

Hello there @MEKSA!

That’s a quite specific problem you are encountering, specially the fact that no crash or error takes place, just the whole engine freezing.

Does it happen with that particular project? Or even packing an empty project causes the same effect? If not, then an element in that particular project is causing the freeze, maybe a heavy load asset.

On the other hand, if it happens with every project you work on, I would suggest a clean state approach, via full uninstall/reinstall of all Epic software:

  • First, uninstall the engine, launcher, asset packs, etc
  • Next, open the registry directory HKEY_CURRENT_USER\Software\Epic Games\Unreal Engine\Builds, and delete any build entries
  • Finally, delete the folders %userprofile%\AppData\Local\UnrealEngine and %userprofile%\AppData\Local\UnrealHeaderTool
  • After that, no elements related to UE should be left in your system
  • Now, reinstall UE launcher from scratch, and only add the latest version of the engine
  • After the process is complete, test packaging a project again

Hey there, thanks for getting back to me. I did a bit more investigation and was able to package a new project properly.

I then looked at the logs more closely instead of just looking for errors, and found tons and tons of warnings.

Apparently an asset pack I recently reinstalled is causing so many warnings that the log file itself is nearly 150mb.

Here’s just a sample.

Every single “block” in every single level is spitting out hundreds, if not thousands of these warning.

I’ve reached out to the content creator’s discord, but they appear to be in the exact opposite timezone as me.

A lot of these warnings mention doors, or stairs which I am not using at all, so it’s a bit of a head scratcher for me.

Hopefully the creator gets back to me in a reasonable amount of time.

1 Like

This was resolved after the asset creator updated the assets. Not really sure what was going on in the first place, but I’m happy to move on.