Map duplication error

The problem: After duplicating an already existing level, the new one can’t be saved because of this strange error.


It was a 4.13.1 - 4.14.P1 converted project, but I don’t think that makes a difference.

Hello CrimsonHawk,

I was unable to reproduce this issue on our end. I have a few questions for you that will help narrow down what issue it is that you are experiencing.

Quick questions:

  1. Can you reproduce this issue in a clean project?
  2. If so, could you provide a detailed list of steps to reproduce this issue on our end?
  3. Does this only happen in a project that has been upgraded?

Hello CrimsonHawk,

I was able to reproduce this issue on our end. I have written up a report and I have submitted it to the developers for further consideration. I have also provided a link to the public tracker. Please feel free to use the link provided for future updates. Thank you for your time and information.

Link: Unreal Engine Issues and Bug Tracker (UE-37760)

Make it a great day

It happens with clean project also, made in 4.14.P1. Steps are :

  1. New project
  2. Save level (NewMap)
  3. Duplicate map with Ctrl+W (NewMap2), and try to save project.

Then this message comes. If I press yes, it fails to do whatever it tries to do, and asks if I want to Retry, cancel or OK. Pressing Retry just loops the whole process.


If you are still experiencing this issue in the latest version of 4.14, you may be experiencing a different issue. Could you create a new thread with information on reproducing your issue in a clean project. You can the place the link in a reply here and someone can follow up.

why is this marked as fixed im still getting the same thing with duplicating a map except the errors are different?

ok done thanks