StartIndex cannot be less than zero. Parameter name: startIndex System.ArgumentOutOfRangeException, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 startIndex mscorlib -2146233086 SDL Trados Studio 14.0.0.0 14.1.10018.54792 Microsoft Windows 10 Pro NULL 1033 1252 xxx 4.0.30319.42000 xxx True 16705744 MB