I have a strange issue here when running arcpy.sa.CreateRandomRaster depending on the size of the extent.
I'm running ArcGIS Desktop 10.6 with 64bit geoprocessing in Windows 10
if I run this code in the python window:
ext1 = arcpy.Extent(4054000,2329000,4260000,2597000)
ras1 = arcpy.sa.CreateRandomRaster(1, 100, ext1)
everything works as expected and I get my raster
when I run:
ext2 = arcpy.Extent(4743000,4518000,5240000,5309000)
ras2 = arcpy.sa.CreateRandomRaster(1, 100, ext2)
I get a popup window saying that the background processing has encountered a serious error.
Obviously I get the same issue running the tool from the sa toolbox even in foreground processing mode.
A colleague here with ArcGIS 10.5.1 with 64bit geoprocessing in Windows 10 does not absolutely have this issue.
Any idea ?