Comment # 2 on bug 1208659 from Ra���l Osuna

(In reply to Fabian Vogt from comment #1)
> Can you get a backtrace?
> 
> This might be caused by the Plasma 5.27 update and might even be fixed with
> 5.27.1 already.

raul@laptop:~> $ kstart5 plasmashell
Omitting both --window and --windowclass arguments is not recommended
kf.plasma.quick: Applet preload policy set to 1
Both point size and pixel size set. Using pixel size.
org.kde.plasma.containmentlayoutmanager: Error: cannot change the containment
to AppletsLayout
org.kde.plasma.containmentlayoutmanager: Error: cannot change the containment
to AppletsLayout
org.kde.plasma.containmentlayoutmanager: Error: cannot change the containment
to AppletsLayout
QObject::connect: No such slot DesktopProtocol::_k_slotRedirection(KIO::Job *,
QUrl)
QObject::connect: No such slot DesktopProtocol::_k_slotRedirection(KIO::Job *,
QUrl)
file:///usr/lib64/qt5/qml/org/kde/plasma/extras/PlaceholderMessage.qml:238:5:
QML Heading: Binding loop detected for property "verticalAlignment"

I guess that doesn't say much. Not sure about how to get the backtrace.
I tried with gdb, but the command was not right. Googling did not help much.
Can you guide me to get it?