EPM reset to templates fails

Not sure if it’s a bug or a misconfigation. FreePBX 13.0.19. All modules up to date as of 2015-11-20 1337EST.

Logged in as the admin user. I had made some button changes to my set to test some functionality.

Go to EPM, Extension Mappings. Go to my extension and click on the “sliders” icon. It brings the list of buttons. Scroll to the bottom and click on “Reset to Template”. I get this error message:
Module Access Denied

	This module appears to be installed and enabled but your user does not seem to have permission to access it.	

As far as I can tell, the user has all access to everything.

Actually, any changes to buttons fail with that message.

Bug or did I miss something?