Surface Book Taskbar Previews close too quickly (when battery status updates)

Sometimes when I hover over a Taskbar Preview of an open window, it stays visible until I click it or move the cursor somewhere else. Sometimes it just disappears almost instantly, while I'm still trying to see what it shows. I've discovered what triggers the sudden closing:

As you can see in one of the lower reports, my charger is active. But every few seconds, the top line changes to "Not charging", one of the batteries changes to "in use", and then the top line says "Calculating", and then finally they all agree both batteries are charging. Every cycle of this closes any open Taskbar Previews!

It happens most frequently when the batteries are almost fully charged. Sometimes, probably depending on the CPU load, it keeps happening for hours when the batteries should be fully charged. Unplug the charger and it never happens (that I've noticed).

There are several threads, going back to Win7, describing similar issues with power management and Taskbar Preview. Like:

http://answers.microsoft.com/en-us/windows/forum/windows\_7-desktop/taskbar-thumbnail-preview-disappear-too-quickly-to/b0aeb6e1-ba60-4caa-a09a-19ce4d3b3dc8

But those are with third-party power managers for other brands of notebook, with control settings I don't have. I have Microsoft's own flagship Surface Book - how can it be that this relatively ancient problem plagues the interaction between Microsoft hardware and software?

Has anyone found a solution other than running on battery?