Error: Input string was not in a correct format

When I try to load an export, I get an unhandled exception error. It seems to be some sort of int parsing error, which based on the last couple hotfixes suggests to me that I might have found another rare instance of a string becoming an int. I got the error when loading the "Sites" section of "Parsing Sites and Populations". I exported a previous version of the world and that export has no issues. I have pasted the error message below.

See the end of this message for details on invoking just-in-time (JIT) debugging instead of this dialog box.

** Exception Text ** System.FormatException: Input string was not in a correct format. at System.Number.StringToNumber(String str, NumberStyles options, NumberBuffer& number, NumberFormatInfo info, Boolean parseDecimal) at System.Number.ParseInt32(String s, NumberStyles style, NumberFormatInfo info) at LegendsViewer.Legends.Parser.SitesAndPopulationsParser.ReadPopulations() at LegendsViewer.Legends.Parser.SitesAndPopulationsParser.Parse() at LegendsViewer.Legends.World..ctor(BackgroundWorker worker, String xmlFile, String historyFile, String sitesAndPopulationsFile, String mapFile, String xmlPlusFile) at LegendsViewer.FileLoader.BackgroundWorkerOnDoWork(Object sender, DoWorkEventArgs e) at System.ComponentModel.BackgroundWorker.OnDoWork(DoWorkEventArgs e) at System.ComponentModel.BackgroundWorker.WorkerThreadStart(Object argument)

Loaded Assemblies mscorlib Assembly Version: 4.0.0.0 Win32 Version: 4.8.4250.0 built by: NET48REL1LAST_C CodeBase: file:///C:/Windows/Microsoft.NET/Framework64/v4.0.30319/mscorlib.dll

LegendsViewer Assembly Version: 1.20.6.373 Win32 Version: 1.20.06.373 CodeBase: file:///C:/Users/0wolf/Desktop/Extraction%20Zone/numba2/LegendsViewer.exe

System.Windows.Forms Assembly Version: 4.0.0.0 Win32 Version: 4.8.4270.0 built by: NET48REL1LAST_C CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/System.Windows.Forms/v4.0_4.0.0.0__b77a5c561934e089/System.Windows.Forms.dll

System Assembly Version: 4.0.0.0 Win32 Version: 4.8.4200.0 built by: NET48REL1LAST_C CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/System/v4.0_4.0.0.0__b77a5c561934e089/System.dll

System.Drawing Assembly Version: 4.0.0.0 Win32 Version: 4.8.3752.0 built by: NET48REL1 CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/System.Drawing/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Drawing.dll

System.Core Assembly Version: 4.0.0.0 Win32 Version: 4.8.4270.0 built by: NET48REL1LAST_C CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/System.Core/v4.0_4.0.0.0__b77a5c561934e089/System.Core.dll

System.Configuration Assembly Version: 4.0.0.0 Win32 Version: 4.8.4190.0 built by: NET48REL1LAST_B CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/System.Configuration/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Configuration.dll

System.Xml Assembly Version: 4.0.0.0 Win32 Version: 4.8.3752.0 built by: NET48REL1 CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/System.Xml/v4.0_4.0.0.0__b77a5c561934e089/System.Xml.dll

ObjectListView Assembly Version: 2.9.1.1072 Win32 Version: 2.9.1.0 CodeBase: file:///C:/Users/0wolf/Desktop/Extraction%20Zone/numba2/ObjectListView.DLL

SevenZipSharp Assembly Version: 0.64.3890.29348 Win32 Version: 0.64.3890.29348 CodeBase: file:///C:/Users/0wolf/Desktop/Extraction%20Zone/numba2/SevenZipSharp.DLL

CommonMark Assembly Version: 0.1.0.0 Win32 Version: 0.1.0.0 CodeBase: file:///C:/Users/0wolf/Desktop/Extraction%20Zone/numba2/CommonMark.DLL

** JIT Debugging ** To enable just-in-time (JIT) debugging, the .config file for this application or computer (machine.config) must have the jitDebugging value set in the system.windows.forms section. The application must also be compiled with debugging enabled.

For example:

When JIT debugging is enabled, any unhandled exception will be sent to the JIT debugger registered on the computer rather than be handled by this dialog box.

Kromtec / LegendsViewer