Compiling specific blueprints in user projects cause editor to freeze and become unresponsive

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
https://answers.unrealengine.com/questions/411481/playercontroller-blueprint-compile-hang-on-4112.html

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

Download, unzip, open either project at below links:

Project1
[Link Removed]

Project2
[Link Removed]

Project1

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

Project2

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

Results

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.

Expected

The editor remains responsive and blueprint is compiled.