Object reference not set to an instance of an object. System.NullReferenceException, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 Sdl.TranslationStudio.AlignmentEditor -2147467261 SDL Trados Studio 15.0.0.0 15.2.4.1693 Microsoft Windows 10 Enterprise NULL 1033 1252 USERNAME 4.0.30319.42000 ABCD True 8387556 MB