Rebuild Static Files throws error IN_DEV

This error is produced in IN_DEV under Customization -> Rebuild Static Files button:

OutOfRangeException:  (0)
#0 C:\xampp\htdocs\devboard\applications\core\modules\admin\customization\themes.php(1388): IPS\Application::load('cloud')
#1 C:\xampp\htdocs\devboard\system\Dispatcher\Controller.php(128): IPS\core\modules\admin\customization\themes->rebuildStatic()
#2 C:\xampp\htdocs\devboard\system\Node\Controller.php(117): IPS\Dispatcher\Controller->execute()
#3 C:\xampp\htdocs\devboard\applications\core\modules\admin\customization\themes.php(112): IPS\Node\Controller->execute()
#4 C:\xampp\htdocs\devboard\system\Dispatcher\Dispatcher.php(169): IPS\core\modules\admin\customization\themes->execute()
#5 C:\xampp\htdocs\devboard\admin\index.php(15): IPS\Dispatcher->run()
#6 {main}

EDIT: version 5.0.8 stable