Error/bug on Line 22 of Illinois Schedule M

On Illinois Schedule M (Other Additions and Subtractions), line 22 (US Treasury, etc interest) is incorrectly calculated.  It is subtracting the line 14 amount from the US Gov't interest from non- K-1-T's.  It is hard to believe that the delta is a coincidence.  For example:

 

US Gov't Interest from mutual funds, etc = $500

US Gov't Interest on K-1-T's                        = $100

 

Instead of showing $100 on line 14 and $500 on line 22...

it shows $100 on line 14 and $400 on line 22.