Printing checks with custom chk file "unknown check field type 0"

[gnucash at skagitattic.com]

Hello,

I am having trouble printing checks.  I am getting the error
"***(unknown check field type 0)***". I reordered the check items and it
prints.  However I would like to know why I needed to re-order the item
fields to get the check to print.

Here is the chk file where two fields fail to print:
http://skagitattic.com/gnucash/demo.chk

This is a PDF of a print:
http://skagitattic.com/gnucash/demo.pdf

I can reorder the fields like so (also with a new Guid but I tried it
with one file first doing edits and checking prints):
http://skagitattic.com/gnucash/demo2.chk

And it prints correctly as shown here:
http://skagitattic.com/gnucash/demo2.pdf

Both are printing the same transaction, I printed one right after the
other to the PDF printer.

I am using Debian Stable with Gnucash 1:2.4.10-6.

Anyone know what I am doing wrong?  Is there something in that file
gnucash does not like?

Thanks,
Keelan