Someone that has run into this before please respond with a fix. I need to do a block operation but I can't because the row numbers mysteriously disappeared from the element list input. Row numbers are still there for all the other list inputs, just not the elements. How do I get them back?

Try deleting the ".grd" file for the affected job (note, you may have to open the "c 2" archive to get to this file).

Thank you Richard. Worked like magic. I'm not sure what the c 2 archive is, but luckily I didn't have to go there.