Error: Input string was not in a correct format

[0wolfmoon0]

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.

[0wolfmoon0]

Apologies for the bold, I couldn't seem to get it to post without the bold