I have DF taskbar some application on my second screen. If one application start to lag (my example is closing AutoCAD Electrical), DF taskbar is not accesible while aplication lag. It is possible to witch to another application via ALT(+SHIFT)+TAB, but not via DF taskbar.

I think that is because on some event DF updates taskbar button with loop, but when reach lagged application DF wait it.

Second issue.
Also, sometimes task button of application, which is hanging on screen with DF taskbar, magically goes to windows taskbar. And it's stay in windows taskbar until I switch to another application (no every other event, even unhanging application).