Taskbar tray icons menu won't show when floating mode is disabled

I changed to taskbar style option from float to non float, and it makes my try icons menu invisible.

However if I turn the style back to float it get fixed. It only happens on non-floating taskbar.

This is 485456 – With Qt 6.7, System Tray popup is inappropriately resized to a tiny nub, which is fixed for Plasma 6.0.5. It was caused by a Qt 6.7 regression that we had to react to.