Start11 broken taskbar thumbnail previews
Hovering the mouse over pinned taskbar applications shows only the upper portion of a thumbnail preview. Part of the bottom of the thumbnail preview is missing. This does not happen immediately when logging in to Windows. It seemingly occurs randomly after a couple days of usage. Restarting the PC or restarting Explorer fixes the issue for a while, but it recurs and requires restarting Explorer each time to fix.
Steps to reproduce
Install Start11 v2.7 on Windows 11 with a PC that has dual 4K monitors. Orient the taskbar vertically on the left side of the primary monitor. Use the PC for at least a couple days and observe that at some point taskbar thumbnail previews only show their upper portion when they appear.