The beta has just been updated with the following changes:
Fixed saving legacy configurations for titles with native controller support.
Fixed the configurator sometimes not displaying the correct title and author for a given set of bindings, including templates.
Improved responsiveness of the configuration selector in some cases.
Fixed a regression where the desktop keyboard would sometimes steal focus.
Fixed a bug where configuration migration would fail for users that had non-Steam shortcuts with special characters in their names.
Added ability to rename Non-Steam Game Shortcuts within Big Picture's Manage Shortcut options. Non-Steam Game Community Configurations are shared based on their name, letting users fine-tune their binding selection.
Fixed various bugs related to attempting to edit a configuration that wasn't linked to an associated controller/account. This would appear to work, but not be saved/reflected on the actual accounts/controllers in use.
Improved support for VR keyboard. Keyboard now positions itself better and selection bugs fixed.