Erroneous parse not displayed

[amnonma]

@dehilsterlexis
This code generates errors an error file, but does NOT show up in the GUI. (input like 13-1 at end of text)

@pre
<1,1> length(2);
<3,3> length(1);
@post
++S("truncated");
S("num1") = num(nodetreetext(N(1)));
S("num2_truncated") = num(nodetreetext(N(2))); ### ERROR!!! Should be N(3)
singler(1,3);
@rules
_numDash <-
_xNUM
_xWILD [one match=( \/ \- )]
_xNUM
_xEND
@@

[dehilsterlexis]

@amnonma I'm not being able to reproduce this. I can't find an error in any of the files.