Description

Dragging any cooked Actor-based Blueprint class asset into the level editor viewport will crash the editor when it has been configured to work with cooked assets.

This is a regression that started occurring in the 5.4 release.

Steps to Reproduce
  1. Create a new (blank) project (BP only is fine).
  2. Follow steps [Link Removed] to configure editor for working w/ cooked content. Relaunch editor after configuration.
  3. Create a new Actor-based BP class asset (NewBlueprint).
  4. Create a new (blank) level and drag the (uncooked) BP asset into it.
  5. Set the level as the startup map for the game.
  6. Cook the project (can do this via the 'Platform' menu and project launcher).
  7. Navigate to the project's Saved/Cooked folder and copy out the cooked NewBlueprint.uasset/uexp files to a 'CookedAssets' folder inside the project's Content folder.
  8. In the Content Browser, navigate to the CookedAssets folder and attempt to drag the NewBlueprint asset into the level viewport.
  9. Editor will crash.

Have Comments or More Details?

There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-304381 in the post.

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Fixed
ComponentUE - Framework - Blueprint
Affects Versions5.45.55.6
Target Fix5.7
Fix Commit44043041
CreatedJul 14, 2025
ResolvedJul 14, 2025
UpdatedAug 11, 2025
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