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draged column over the grid steal data from another one

I have a very large grid as you can see part of it here: http://alink.co.il/temp/stage1.jpg
when I drag one specific column over some other specific column (in this case: "vlan" over "ip") some of the data is grabed from the ip column and show on the vlan column, you can seen what happen here: http://alink.co.il/temp/stage1.jpg

after refresh it all return to be ok
I'm runnig dhtmlxGrid_v25_pro_91111

Links provided by you is the same. Can you provide correct link where issue occurs? 

Are you using rowspan in your grid? Unfortunately rowspan mode is incompatible with "column move" extension. As a workaround you can add few line of links into one grid cell:
<cell><![CDATA[<a href="link1">Link1</a><br /><a href="link2">Link2</a>]]></cell>
In such case multi line mode should be enabled:
mygrid.enableMultiline(true);