<p> This occurs when making double-click (a selection of cells). I looked in the server log file. The last line, at the time of the error was:</p>
<p>ExecuteStream</p>
<p>Invoke stream(</p>
<p> Invoke id(1) GetVTKObject uint32(2147)</p>
<p></p>
<p>) SelectCells int32(214) int32(306) int32(595) int32(531)<br /><br /></p>
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<p>.</p>
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