SUMMARY
If you click Digital Clock to open a calendar, then right-clicking a calendar item makes the Days/Months/Years tabs nonfunctional.

STEPS TO REPRODUCE
1. Click on the Digital Clock taskbar widget to open a calendar popup.
2. On any calendar popup tab (Days, Months, or Years), right-click any item (day, month, or year rectangle) in the main body of the popup.
3. Click on another tab.

OBSERVED RESULT
The tabs switch, but the widget does not scroll to show days, months, or years.

If you click away from the calendar window (hiding it) and click the Digital Clock again, it will automatically switch to the Days tab, but the items shown will still reflect the tab you initially right-clicked on.

This glitched state persists until you left-click an item.

EXPECTED RESULT
Either a working right-click menu opens (allowing you to copy the date you're pointing to), or right-clicking does nothing.

SOFTWARE/OS VERSIONS
Operating System: Arch Linux
KDE Plasma Version: 5.21.5
KDE Frameworks Version: 5.82.0
Qt Version: 5.15.2
Kernel Version: 5.12.4-arch1-2
OS Type: 64-bit
Graphics Platform: X11
Processors: 12 × AMD Ryzen 5 5600X 6-Core Processor
Memory: 15.6 GiB of RAM
Graphics Processor: NVIDIA GeForce GT 730/PCIe/SSE2

ADDITIONAL INFORMATION