"Error editing single region error surface"

The Problem

When trying to create a FIS error model with slope and point density, the error message "Error editing single region error surface" pops up.

Reproduction steps

I calculated point density and slope rasters as associated surfaces to the surveyed DEMs
All rasters are concurrent and orthogonal and have the same coordinate system specified.
When trying to calculate a new FIS error model, the above message appears.

Exception message

Index was out of range. Must be non-negative and less than the size of the collection.
Parameter name: index
 --- Stacktrace --- 
   at System.ThrowHelper.ThrowArgumentOutOfRangeException(ExceptionArgument argument, ExceptionResource resource)
   at GCDConsoleLib.FIS.RuleSet.calculate(List`1 dataArrays, Int32 n, Boolean checkNoData, List`1 noDataValues, Double noData) in D:\Code\gcd\gcd\GCDConsoleLib\FIS\RuleSet.cs:line 245
   at GCDConsoleLib.Internal.Operators.CreateErrorRaster.CellChangeCalc(String propkey, List`1 data, Int32 id) in D:\Code\gcd\gcd\GCDConsoleLib\RasterOperators\Operators\CreateErrorRaster.cs:line 150
   at GCDConsoleLib.Internal.Operators.CreateErrorRaster.CellOp(List`1 data, List`1 outputs, Int32 id) in D:\Code\gcd\gcd\GCDConsoleLib\RasterOperators\Operators\CreateErrorRaster.cs:line 199
   at GCDConsoleLib.Internal.CellByCellOperator`1.ChunkOp(List`1 data, List`1 outChunks) in D:\Code\gcd\gcd\GCDConsoleLib\RasterOperators\CellByCellOperator.cs:line 90
   at GCDConsoleLib.Internal.BaseOperator`1.Run() in D:\Code\gcd\gcd\GCDConsoleLib\RasterOperators\BaseOperator.cs:line 417
   at GCDConsoleLib.RasterOperators.CreateErrorRaster(Raster rawDEM, ErrorRasterProperties props, FileInfo sOutputRaster, EventHandler`1 progressHandler) in D:\Code\gcd\gcd\GCDConsoleLib\RasterOperators\Interfaces.cs:line 792
   at GCDCore.UserInterface.SurveyLibrary.ErrorSurfaces.frmSingleMethodError.cmdOK_Click(Object sender, EventArgs e)
 --- Exception Data --- 
ArcMap = 10.6.0.8321
GCD = 7.4.1.0
Windows: Microsoft Windows NT 6.2.9200.0
Date: 24/09/2019 12:59:19 PM

Anything else?

You can attach links to datasets.

I am also having the same error, which I don't understand. I just added a new DEM to a previous project that was able to create previous FIS surfaces but now I keep getting this error when I try to make an new FIS?

the parameters are still the same, my method for processing has not changed. The input are in meters, I am not sure what is undefined.

Error editing single region error surface Both rasters must have the same vertical units: Meter vs. Undefined --- Stacktrace --- at GCDConsoleLib.Raster.ValidateSameMeta(Raster rR1, Raster rR2, Boolean ignoreProj) at GCDConsoleLib.Internal.BaseOperator1.AddInputRaster(Raster rInput) at GCDConsoleLib.Internal.Operators.CreateErrorRaster..ctor(Raster rawDEM, ErrorRasterProperties prop, Raster rOutputRaster) at GCDConsoleLib.RasterOperators.CreateErrorRaster(Raster rawDEM, ErrorRasterProperties props, FileInfo sOutputRaster, EventHandler1 progressHandler) at GCDCore.UserInterface.SurveyLibrary.ErrorSurfaces.frmSingleMethodError.cmdOK_Click(Object sender, EventArgs e) --- Exception Data --- GCD = 7.4.4.0 Windows: Microsoft Windows NT 6.2.9200.0 Date: 12/30/2020 12:49:09 PM

Riverscapes / gcd