Titlebar missing

After recent update of openSuse Leap 15.4 titlebars are missing. Also, it is impossible to move application windows with the mouse.
Any idea.

My system:
Operating System: openSUSE Leap 15.4
KDE Plasma Version: 5.26.3
KDE Frameworks Version: 5.100.0
Qt Version: 5.15.7
Kernel Version: 5.14.21-150400.24.33-default (64-bit)
Graphics Platform: X11
Processors: 12 × Intel® Core™ i7-10850H CPU @ 2.70GHz
Memory: 31,2 GiB of RAM
Graphics Processor: Quadro RTX 3000/PCIe/SSE2

I forgot to mention that all shortcuts are missing too.

Leap 15.4 currently has:

Operating System: openSUSE Leap 15.4
KDE Plasma Version: 5.24.4
KDE Frameworks Version: 5.90.0
Qt Version: 5.15.2

Where are you updating from?

I am using the following repos:
KDE Applications: https://download.opensuse.org/repositories/KDE:/Applications/KDE_Frameworks5_openSUSE_Leap_15.4/
KDE Extra: https://download.opensuse.org/repositories/KDE:/Extra/KDE_Applications_openSUSE_Leap_15.4/
KDE Frameworks: https://download.opensuse.org/repositories/KDE:/Frameworks5/openSUSE_Leap_15.4/
Qt5: https://download.opensuse.org/repositories/KDE:/Qt5/openSUSE_Leap_15.4/
Main Repository: http://download.opensuse.org/distribution/leap/$releasever/repo/oss/
Main Update Repository: http://download.opensuse.org/update/leap/$releasever/oss

In addition, the Plasma 5 site shows the following information:AnnouncementsMonday, 14 November 2022
KDE Ships Frameworks 5.100.0KDE today announces the release of KDE Frameworks 5.100.0. Read More

Tuesday, 8 November 2022
KDE Plasma 5.26.3, Bugfix Release for NovemberToday KDE releases a bugfix update to KDE Plasma 5. Read More

Thursday, 3 November 2022
KDE Gear 22.08.3KDE announces the release of KDE Gear 22.08.3. Read More

Tuesday, 25 October 2022
KDE Plasma 5.26.2, Bugfix Release for OctoberToday KDE releases a bugfix update to KDE Plasma 5. Read More

And you have set those first 4 repositories to a higher priority than the main openSUSE repositories and performed a vendor switch?

See: https://en.opensuse.org/SDB:KDE_repositories

The symptoms you are seeing are typical of mismatched (kde) packages…

OK, what do you suggest me to do. Delete or set to the higher priority the first four repos.
What about the last three repos, what to do with them.
Regards,
Bojan

As explained in the linked document, set the KDE Frameworks and Qt5 repositories to a higher priority than all others, then perform a zypper dup using:

zypper -v dup --allow-vendor-change

You should also have the SLE and Backports repositories (at normal, not raised, priority):

Update Backports             https://download.opensuse.org/update/leap/$releasever/backports/
Update SLE                   https://download.opensuse.org/update/leap/$releasever/sle/

You may of course have those but didn’t list them in post #4

A general remark to the OP.

Please post things always complete. So do not extract some information and then type what you think is appropriate, but post prompt/command line, all output lines and next prompt line. In this case of

zypper lr -d

After all, you ask for help because you seem to miss something. It is then not very clever to restrict the information you provide by posting your conclusions only. Often the solution can be found in the places where you did not look at.

Thanks, it worked. Everything back to normal again.

Understood, will be good in the future. Thank you.