Widget alignment on drop in widgetarea

We have a left widget area and 3 widgets in it.

The user can drag and drop the widgets in the widget area to reorganize as desired.

If the user drops the widget into the bottom of the left widget area, then the widget spacing becomes messed up.

This only happens when the user drops a widget into the very bottom area of the left widget area.

I have attached 2 screenshots to display the issue. 

ss1.png displays the app when it loads.

ss2.png displays after the user has dragged 'Tools' into the very bottom widget area container in the left column widget area.

It appears the bottom widget area (the blue highlighted box that appears when the user is dragging a widget) treats the widgets differently than the other places to drop the widget?

Afterwards, if the user touches the resize control then the widgets align properly.