I found the problem. In the mhp file, edit 12, has just:
code:
with Add After selected.
In edit 13, the code is:
code:
[qb] $ShColSpan2 = $vars_statistics{'ShColSpan2'};
$vars_statistics{'ShColSpan2'} = 0;
&DisplayStats;
[/qb]
with Add Before selected.
Changing edit 12 to be the same as 13 solves the problem.