When trying to execute the region command in Raster Design 2013 64bit we are getting the following error "Unhandled Exception 6942E168 (Access Violation Reading 0x000c) at address E234C57ah" we also get the following appearing in the command window:
c:\program files\autodesk\autocad raster design 2013\aeciribbonuiapi56.arx cannot find a dll or other file that it needs.
AcRxDynamicLinker failed to load 'c:\program files\autodesk\autocad raster design 2013\aeciribbonuiapi56.arx'
C:\Program Files\Autodesk\AutoCAD 2013\acad.exe
Required application "AeciRibbonUiApi" not loaded.
Required application "AeciRibbonUiApi" not unloaded.
Required application "AeciRem" not loaded.
Required application "AeciRem" not unloaded.Unknown command "ISPOLYREG". Press F1 for help
Sometimes the user is able to get the command to start working by changing to a different profile and then back to the correct profile. This fix is intermittent and other times the software has to be reinstalled, this will always get it back working. No matter which way is used to fix it, the problem returns in anywhere from 1 hour to 1 day.