3

I am performing the following commands:

MI = 
  {{-1,0,0,0,0,0,0}, {1,-1,1,0,0,0,0}, {0,1,-1,0,0,-1,0}, 
   {0,0,0,-1,-1,1,0}, {0,0,0,1,1,0,-1},{0,0,0,0,0,0,1}};
Graf = 
  IncidenceGraph[MI, 
    EdgeWeight->{a,b,c,d,e,f,g},
    EdgeLabels->"EdgeWeight",
    VertexLabels->"Name"];
Print[Graf];

The printed graph, Graf, does not show one edge with weight e. Instead, it shows the edge with repeated weight d. Does anybody know why? Sorry if it is an obvious question. I simply don't see what is wrong. Is this a bug in Mathematica?

m_goldberg
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J.R.Descardeci
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    This is a duplicate of https://mathematica.stackexchange.com/q/92014/12 Please see the discussion in the comments. "Sorry if it is an obvious question." No, it's not obvious at all. – Szabolcs Apr 10 '19 at 13:10
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    If you care about this issue, I strongly suggest you write to Wolfram Support and ask about it. There is little chance it will be fixed unless multiple different people bring it up. I have been complaining for years about this specific thing, but I am just one person. – Szabolcs Apr 10 '19 at 13:11

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