I'm having the same problem. Mine won't leave Southern Barrens. I even manually moved it to somewhere else as I'm @ 220 and it fly's back to Southern Barrens.
Also been getting this error today and my HB won't load at all. I open it up and it doesn't ask me for my key just opens the box and its blank. Here is my log
[10:28:41 AM:367] System.TypeInitializationException: The type initializer for 'Styx.Helpers.UISettings' threw an exception. ---> System.Xml.XmlException: '.', hexadecimal value 0x00, is an invalid character. Line 1, position 1.
at System.Xml.XmlTextReaderImpl.Throw(Exception e)
at System.Xml.XmlTextReaderImpl.Throw(String res, String[] args)
at System.Xml.XmlTextReaderImpl.Throw(Int32 pos, String res, String[] args)
at System.Xml.XmlTextReaderImpl.ThrowInvalidChar(Int32 pos, Char invChar)
at System.Xml.XmlTextReaderImpl.ParseRootLevelWhitespace()
at System.Xml.XmlTextReaderImpl.ParseDocumentContent()
at System.Xml.XmlTextReaderImpl.Read()
at System.Xml.XmlReader.MoveToContent()
at System.Xml.Linq.XElement.Load(XmlReader reader, LoadOptions options)
at System.Xml.Linq.XElement.Load(String uri, LoadOptions options)
at System.Xml.Linq.XElement.Load(String uri)
at Styx.Helpers.Settings..ctor(String settingsPath)
at Styx.Helpers.UISettings..ctor()
at Styx.Helpers.UISettings..cctor()
--- End of inner exception stack trace ---
at Honorbuddy.MainWindow..ctor()