Another problem I've noticed on occasion (maybe happens every few days or so on average) is that sometimes the collapsed application icons stop working on the displayfusion taskbars. If you go to the Windows native taskbar and click on a collapsed application icon it brings up the popup with the row of different application windows that are opened so you can choose which window to restore to the desktop/bring to foreground. When you click on an icon on the displayfusion taskbar, it doesn't do anything. Closing and reopening displayfusion does fix the problem temporarily.

I am running displayfusion on Windows 10 Pro (Build 10.0.10586)

Yes, sure. Not sure when the behavior will crop up, but I will run logging until it happens.

Here's that file:

I've also had this issue ever since Windows 10 came out. I probably experience this at least once a day and it corrects itself if left alone for fifteen minutes or so, but it's pretty frustrating since I can't alt+tab between programs on the secondary monitor.

Mine was already set to "Don't Change the Aero color"

I turned that off. But I know the behavior occurred before when it used to be off anyways.

That option is off as well.

The option has always been off for me and I've had the issue since installing Windows 10

It actually hasn't occurred since my first post. Kind of weird since it was occurring before with enough regularity to be annoying. Guess it wanted to annoy me by not happening after I reported the issue. Or perhaps it was replaced by that other jump list issue I reported.

Sure thing

Okay, the past couple of days the behavior occurred again. I'll attach that file again.

The preview never opens when it's having this issue. When I see the previews opening again then it works fine

Yeah, same here. Preview doesn't open at all when the issue occurs.

I first noticed that the issue was in progress at 8:39 am CST (though it had probably been going on) and it had resolved by 8:40 am.

Another behavior I've noticed when this is happening is that when I use a full screen program like Remote Desktop the DisplayFusion taskbar stays in front instead of going behind the program. When the issue stops then it allows the full screen program into the forefront.

The DisplayFusionHookApp processes were still running when it happened

I'm pretty sure they all still work, I know if you have only a single instance of an application open on the DisplayFusion task bar you can bring it up just fine by clicking on it, you just don't get the preview and therefore can't select between multiple instances. The start menu also still works