I would like to know why 'Guid Use' warning appear

Sorry for my bad english :wink:

In my project had the following problems occur:

The warning is output when building.
More than 4000 lines.

EX ::
" Warning: Guid is in use by BillboardComponent /Game/Maps/Campaign/Theme/Theme06/Level_Common_03_A_P.Level_Common_03_A_P:PersistentLevel.SphereReflectionCapture_1.Sprite and BillboardComponent /Game/Maps/Campaign/Theme/Theme06/Level_Common_01_B_P.Level_Common_01_B_P:PersistentLevel.SphereReflectionCapture_1.Sprite, which should never happen in the editor but could happen at runtime with duplicate level loading or PIE "

I tested my level is as follows

  • To “save as” in the editor.
  • Duplicating in the editor
  • Copy the Windows browser

But they had no GUID Warning.

The random GUID Warning Appears whenever my level is Create a copy in build time.

I want to know why this happens
and I would like to know what to resolve.

My Engine version is 4.8.3.

Please help me~~

Hey ,

Could you please provide me with the full error log from your project, attach it as a .txt file with your next response. Also, create a copy of your project in 4.9.2 and 4.10.2 and let me know if you run into the same issue. Note: Do not convert your project - - only copy.


Hey ,

We have not heard back from you in a few days, so we are marking this post as Resolved for tracking purposes. If you are still experiencing the issue you reported, please respond to this message with additional information and we will offer further assistance.

Thank you!