We did have some report on similar issue, but most, I believe, have been resolved. If not we will have lots more report on these issue. What might be the contributing factors are, some other application in your system is also controlling how the taskbar work. Program such as DisplayFusion, StartAllBack, Other 3rd party software which add their own status icon on the taskbar etc.
What you can try it to do a cleanboot and see if the issue appear while in there. Here is a guide to do Cleanboot. Do note that Cleanboot steps need to done carefully.
Thank you,
Basj,
Stardock Community Assistant