Is this Oxygen error, or Jing ?

[Ron Catterall <ron@catterall.net>]

Jung records errors, but transform to PDF gives correct result.

Oxygen had accepted this as a problem and had fixed in 18.0
The problem recurs in 18.1 - fix lost ?

<ntrytbl align="left" cols="9" rowsep="1" colsep="1">
    <colspec colname="cl" colwidth="14.0*"  align="left"/>
    <colspec colname="c2" colwidth="10.0*"  align="left"/>
    <colspec colname="c3" colwidth="17.0*"  align="left"/>
    <colspec colname="c4" colwidth="11.0*"  align="left"/>
    <colspec colname="c5" colwidth="9.0*"   align="left"/>
    <colspec colname="c6" colwidth="17.0*"  align="left"/>
    <colspec colname="c7" colwidth="9.0*"   align="left"/>
    <colspec colname="c8" colwidth="14.0*"  align="left"/>
    <colspec colname="c9" colwidth="18.0*"  align="left"/>
    <spanspec spanname="hspan"  namest="c1" nameend="c9"/>
    <spanspec spanname="hspan1" namest="c1" nameend="c1"/>
    <spanspec spanname="hspan2" namest="c2" nameend="c2"/>
    <spanspec spanname="hspan3" namest="c3" nameend="c3"/>
    <spanspec spanname="hspan4" namest="c4" nameend="c4"/>
    <spanspec spanname="hspan5" namest="c5" nameend="c5"/>
    <spanspec spanname="hspan6" namest="c6" nameend="c6"/>
    <spanspec spanname="hspan7" namest="c7" nameend="c7"/>
    <spanspec spanname="hspan8" namest="c8" nameend="c8"/>
    <spanspec spanname="hspan9" namest="c9" nameend="c9"/>
    <thead>
        <row>
            <entry spanname="hspan1" rowsep="1" colsep="0" align="center"
                valign="middle">A</entry>
            <entry spanname="hspan2" rowsep="1" colsep="0" align="center"
                valign="middle">N</entry>
            <entry spanname="hspan3" rowsep="1" colsep="0" align="center"
                valign="middle">C</entry>
            <entry spanname="hspan4" rowsep="1" colsep="0" align="center"
                valign="middle">D</entry>
            <entry spanname="hspan5" rowsep="1" colsep="0" align="left"
                valign="middle">E</entry>
            <entry spanname="hspan6" rowsep="1" colsep="0" align="center"
                valign="middle">F</entry>
            <entry spanname="hspan7" rowsep="1" colsep="0" align="left"
                valign="middle">G</entry>
            <entry spanname="hspan8" rowsep="1" colsep="0" align="center"
                valign="middle">H</entry>
            <entry spanname="hspan9" rowsep="1" colsep="0" align="center"
                valign="middle"></entry>
        </row>
    </thead>
    <tbody>
        <row>
            <entry spanname="hspan1" colsep="0">AAA</entry>
            <entry spanname="hspan2" colsep="0">BBB</entry>
            <entry spanname="hspan3" colsep="0">CCC</entry>
                    etc etc etc
        </row>
                    etc etc etc
    </tbody

All instances with reference spanname="hspan1" are flagged as errors 
with the message:
Using oxygen 18.1 / CentOS 6.9 / docbook 5.1 / xsl-ns-1.79.1
Examples - I had 188 of these:

System ID: /home/ron/XMLdocs/LPPendle/chapter_17.xml
Main validation file: /home/ron/XMLdocs/LPPendle/Lone_Pine_Pendle.xml
Scenario name: DocBook 5
Document type: DocBook 5
Engine name: oXygen
Severity: error
Description: The column name (c1) from the "namest" attribute value is 
not found in column specifications.
Type: Table Layout
Start location: 226:33
End location: 227:53

System ID: /home/ron/XMLdocs/LPPendle/chapter_17.xml
Main validation file: /home/ron/XMLdocs/LPPendle/Lone_Pine_Pendle.xml
Scenario name: DocBook 5
Document type: DocBook 5
Engine name: oXygen
Severity: error
Description: The column name (c1) from the "nameend" attribute value is 
not found in column specifications.
Type: Table Layout
Start location: 226:33
End location: 227:53

--
Ron Catterall
ron@catterall.net