Arch Linux

Description:

I've updated my system at 2021/04/08 and 2021/04/09 and since qt5-... packages versions are +kde+subversion, LXQt panel doesn't allow to select and maximize/resize any grouped minimized window.
As example: two or more Qterminal instances in the same desktop, or Thunderbird main window and its Write window in other desktop.

Grouped windows are showed (pop up menu appears with left click) by LXQt Panel, but when I try to select one minimized window, the pop up menu dissapear.

Once all windows in the same desktop are minimized and showed in LXQt Panel, neither of them can be maximized nor resized from LXQt taskbar (Task Manager).

The only updated packages that I can see perhaps related to this bug are:
qt5-base
qt5-svg
qt5-declarative
qt5-wayland ? (I'm not using Wayland at all).
All are now "mainversion+kde+version"... Why kde?

Additional info:
* package version(s)

liblxqt 0.16.0-1
lximage-qt 0.16.0-1 (lxqt)
lxqt-about 0.16.0-1 (lxqt)
lxqt-admin 0.16.0-1 (lxqt)
lxqt-archiver 0.3.0-1 (lxqt)
lxqt-config 0.16.1-1 (lxqt)
lxqt-globalkeys 0.16.0-1 (lxqt)
lxqt-notificationd 0.16.0-1 (lxqt)
lxqt-openssh-askpass 0.16.0-1 (lxqt)
lxqt-panel 0.16.1-1 (lxqt)
lxqt-policykit 0.16.0-1 (lxqt)
lxqt-powermanagement 0.16.0-1 (lxqt)
lxqt-qtplugin 0.16.0-1 (lxqt)
lxqt-runner 0.16.0-1 (lxqt)
lxqt-session 0.16.0-1 (lxqt)
lxqt-sudo 0.16.0-1 (lxqt)
lxqt-themes 0.16.0-1 (lxqt)
obconf-qt 0.16.0-1 (lxqt)
openbox 3.6.1-7 (lxde lxde-gtk3 lxqt)
pcmanfm-qt 0.16.0-1 (lxqt)
qterminal 0.16.1-1 (lxqt)
qt5-base (5.15.2-5 -> 5.15.2+kde+r171-1)
qt5-svg (5.15.2-2 -> 5.15.2+kde+r5-1)
qt5-declarative (5.15.2-1 -> 5.15.2+kde+r24-1)
qt5-wayland (5.15.2-1 -> 5.15.2+kde+r11-1)

* config and/or log files etc.

See attached .txt

* link to upstream bug report, if any
Not found...

Steps to reproduce:

Using LXQt desktop, update qt5-base, qt5-svg, qt5-declarative and qt5-wayland to the last ...version+de+subversion.
Open two or more instances of any program in the same desktop area. Minimize one or more windows, then try to maximize or resize these minimized windows from lxqt task bar: imposible to select or access minimized windows.