Inconsistent DPI Scaling When Resuming From Sleep

I'm running an XPS 15 with a 4k LCD. Windows 10 recommends 200% DPI scaling on my display, but that is just a little to high for me. I'm much more comfortable at 150% or 175%. 200% is just too large and I lose the advantage of a high resolution display.
What I find is that when I'm using the "Recommended" scaling option of 200%, everything works normally, but when I scale to something smaller like 150% I get some strange things happening. It only seems to happen when resuming from sleep.

When I resume from sleep, some apps (and it seems to be Microsoft apps in particular) get messed up. It starts with the lock screen. I resume from sleep and my lock screen image is the same size it would be if it were scaled at the "recommended" 200% level, but it is overlaid on top of my actual password screen which is displayed at the configured 150%. That means that there is space outside the lock screen image that is visible from behind it. It looks really weird.

Secondly, Outlook, Word, OneNote, etc do the same. The window THINKS it is still full screen, but it is only using 75% of the screen. If I un-dock it from full screen and dock it back, it fills the screen properly, but it wont do it on its own. It is almost as if it wants to be scaled at 200% and that is what it defaults to after resuming from sleep. I have to remind the application that it should be viewed at the configured 150%.