"Formatting failed..." with %RANGE/RDi 9.8/SQLRPGLE

This code
when %date in %range(gpieff:gpican)...

in a subroutine appears to cause an intermittent error in RDi: it appears
to break the outlining function that causes and causes the "Formatting
failed--no model available" message. Commenting the code out makes
formatting work and formatting again breaks it. I've used this opcode in
seven other programs and don't recall having a problem with this before but
I'm going to check.

I ran the problem down by deleting 600 lines of subroutines, adding SR's
back individually, and then trying the formatter. I finally discovered I
had to comment out the line and fiddle with the formatting a couple of
times to make it work.

I'm reading a book written by my old Latin teacher, Bob Gula (R.I.P.), in
which he mentioned Bloch's Law: "Tinker with something long enough and it
will break." Lesson learned!