Wiki Example of the Dynamic GEXF file fails to open in Gephi

Hi George,

I followed the examples you have in the wiki for producing a dynamic .gexf file. The problem however, is I am unable to open it in Gephi.

library(rgexf)

people <- data.frame(matrix(c(1:4, 'juan', 'pedro', 'matthew', 'carlos'),ncol=2))
relations <- data.frame(matrix(c(1,4,1,2,1,3,2,3,3,4,4,2), ncol=2, byrow=T))
time<-matrix(c(10.0,13.0,2.0,2.0,12.0,rep(NA,3)), nrow=4, ncol=2)

write.gexf(people, relations, nodeDynamic=time)

<?xml version="1.0" encoding="UTF-8"?>
<gexf xmlns="http://www.gexf.net/1.2draft" xmlns:viz="http://www.gexf.net/1.1draft/viz" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.gexf.net/1.2draft http://www.gexf.net/1.2draft/gexf.xsd" version="1.2">
  <meta lastmodifieddate="2014-04-29">
    <creator>NodosChile</creator>
    <description>A graph file writing in R using "rgexf"</description>
    <keywords>gexf graph, NodosChile, R, rgexf</keywords>
  </meta>
  <graph mode="dynamic" start="10" end="2" timeformat="double" defaultedgetype="undirected">
    <nodes>
      <node id="1" label="juan" start="10" end="12"/>
      <node id="2" label="pedro" start="13" end="2"/>
      <node id="3" label="matthew" start="2" end="2"/>
      <node id="4" label="carlos" start="2" end="2"/>
    </nodes>
    <edges>
      <edge id="0" source="1" target="4" weight="1"/>
      <edge id="1" source="1" target="2" weight="1"/>
      <edge id="2" source="1" target="3" weight="1"/>
      <edge id="3" source="2" target="3" weight="1"/>
      <edge id="4" source="3" target="4" weight="1"/>
      <edge id="5" source="4" target="2" weight="1"/>
    </edges>
  </graph>
</gexf>

Opening this in Gephi produces an error:

The left endpoint of the interval must be less than the right endpoint.

Have you experienced this before?
Is this a bug in Gephi or in rgexf?

Environment:

Gephi 0.8.2
rgexf 0.14.3
Windows 7 64-bit.
R 3.0.3

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