Sensitive resizing of DataGrid columns

I've noticed that some of my DataGrid pages tend to jump around in column width the moment I drag the column to resize it. It seems to disappear when I remove the column width set on the individual columns. Is this a known issue? For now I'll avoid setting widths on individual columns if AllowColumnResize="true"

I'm afraid that without more information how to reproduce this we cannot help much. I'm unable to reproduce such problem on our demos: