Several users have reported that their projects cannot compile specific blueprints. In one a character blueprint and another a controller. In both instances, the editor becomes completely unresponsive and must be shut down via task manager after the compile button is pressed.

Additional Link

Regression (Yes) issue (does not) occur in 4.10.4

Steps to Reproduce

Download, unzip, open either project at below links:

[Link Removed]

[Link Removed]


  1. ZUnzip, open project
  2. Open Open Content\Blueprints\Characters\BP_Swordsman
  3. Press Compile


  1. Unzip, open attached project
  2. Open \Content\Blueprints\PS_PlayerController
  3. Press Compile


In both projects, the editor freezes once compile is pressed and becomes unresponsive, the editor must be shut down via the task manager. During the test, project1 was left open for ~10 minutes before task manager was used to shut down the editor.


The editor remains responsive and blueprint is compiled.

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ComponentUE - Gameplay - Blueprint
Affects Versions4.11.1
Target Fix4.13
Fix Commit3055366
Main Commit3058256
CreatedApr 28, 2016
ResolvedJul 19, 2016
UpdatedApr 27, 2018
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