In addition to browser zooming this also happens if Windows scaling is not set to 100% on the computer. For example Windows recommends 250% scaling for my laptop so it never works regardless of the zoom level in Chrome.
I'm not sure of when the fix was made, but Kendo UI R2 2018 SP1 (the most recent version) works as expected.
For the Kendo UI version being used by AIM, this workaround does seem to do the trick.
https://docs.telerik.com/kendo-ui/knowledge-base/grid-column-resize-not-working-in-chrome
The code below only needs to run one time in your app. Meaning once it runs the fix will be applied to all grids. It should run prior to displaying the first grid.
To make sure that happens, you might want to run it when the first VP loads. One way to do that would be to put it in a "menu" script, such as VP > Left > Menu > Init Script
kendo.ui.Grid.prototype._positionColumnResizeHandle= function() {
var that = this,
indicatorWidth = that.options.columnResizeHandleWidth,
lockedHead = that.lockedHeader ? that.lockedHeader.find("thead:first") : $();
that.thead.add(lockedHead).on("mousemove" + ".kendoGrid", "th", function (e) {
var th = $(this);
if (th.hasClass("k-group-cell") || th.hasClass("k-hierarchy-cell")) {
return;
}
that._createResizeHandle(th.closest("div"), th);
});
};