Dolphin crashes after update

After the last Manjaro’s update, Dolphin keeps crashing every time I double click on any file to run it (this does not happen with folders).
A message with the title “Dr Konqi” appears, saying:

Dolphin Closed Unexpectedly
Please report this error to help improve this software.

Can you try to run dolphin from the terminal and paste the output when you double click a file?

Thanks for your message.
Here is the output when I run Dolphin from the terminal:

❯ dolphin
Invalid Context= "Legacy" line for icon theme:  "/usr/share/icons/Adwaita/8x8/legacy/"
Invalid Context= "Legacy" line for icon theme:  "/usr/share/icons/Adwaita/16x16/legacy/"
Invalid Context= "UI" line for icon theme:  "/usr/share/icons/Adwaita/16x16/ui/"
Invalid Context= "Legacy" line for icon theme:  "/usr/share/icons/Adwaita/22x22/legacy/"
Invalid Context= "Legacy" line for icon theme:  "/usr/share/icons/Adwaita/24x24/legacy/"
Invalid Context= "UI" line for icon theme:  "/usr/share/icons/Adwaita/24x24/ui/"
Invalid Context= "Legacy" line for icon theme:  "/usr/share/icons/Adwaita/32x32/legacy/"
Invalid Context= "UI" line for icon theme:  "/usr/share/icons/Adwaita/32x32/ui/"
Invalid Context= "Legacy" line for icon theme:  "/usr/share/icons/Adwaita/48x48/legacy/"
Invalid Context= "UI" line for icon theme:  "/usr/share/icons/Adwaita/48x48/ui/"
Invalid Context= "Legacy" line for icon theme:  "/usr/share/icons/Adwaita/64x64/legacy/"
Invalid Context= "UI" line for icon theme:  "/usr/share/icons/Adwaita/64x64/ui/"
Invalid Context= "Legacy" line for icon theme:  "/usr/share/icons/Adwaita/96x96/legacy/"
Invalid Context= "UI" line for icon theme:  "/usr/share/icons/Adwaita/96x96/ui/"
Invalid Context= "Legacy" line for icon theme:  "/usr/share/icons/Adwaita/256x256/legacy/"
Invalid Context= "Legacy" line for icon theme:  "/usr/share/icons/Adwaita/512x512/legacy/"
Invalid Context= "Legacy" line for icon theme:  "/usr/share/icons/Adwaita/scalable/legacy/"
Invalid Context= "UI" line for icon theme:  "/usr/share/icons/Adwaita/scalable/ui/"
kf.kio.core: We got some errors while running testparm "Error loading services."
kf.kio.core: We got some errors while running 'net usershare info'
kf.kio.core: "Can't load /etc/samba/smb.conf - run testparm to debug it\n"

This is the output when I click on a file (a PNG, in this case):

ASSERT: "genericServiceTypePtr" in file /build/kservice-git/src/kservice/src/services/kapplicationtrader.cpp, line 50
KCrash: crashing... crashRecursionCounter = 2
KCrash: Application Name = dolphin path = /usr/bin pid = 3418
KCrash: Arguments: /usr/bin/dolphin 
KCrash: Attempting to start /usr/lib/drkonqi
Invalid Context= "Legacy" line for icon theme:  "/usr/share/icons/Adwaita/8x8/legacy/"
Invalid Context= "Legacy" line for icon theme:  "/usr/share/icons/Adwaita/16x16/legacy/"
Invalid Context= "UI" line for icon theme:  "/usr/share/icons/Adwaita/16x16/ui/"
Invalid Context= "Legacy" line for icon theme:  "/usr/share/icons/Adwaita/22x22/legacy/"
Invalid Context= "Legacy" line for icon theme:  "/usr/share/icons/Adwaita/24x24/legacy/"
Invalid Context= "UI" line for icon theme:  "/usr/share/icons/Adwaita/24x24/ui/"
Invalid Context= "Legacy" line for icon theme:  "/usr/share/icons/Adwaita/32x32/legacy/"
Invalid Context= "UI" line for icon theme:  "/usr/share/icons/Adwaita/32x32/ui/"
Invalid Context= "Legacy" line for icon theme:  "/usr/share/icons/Adwaita/48x48/legacy/"
Invalid Context= "UI" line for icon theme:  "/usr/share/icons/Adwaita/48x48/ui/"
Invalid Context= "Legacy" line for icon theme:  "/usr/share/icons/Adwaita/64x64/legacy/"
Invalid Context= "UI" line for icon theme:  "/usr/share/icons/Adwaita/64x64/ui/"
Invalid Context= "Legacy" line for icon theme:  "/usr/share/icons/Adwaita/96x96/legacy/"
Invalid Context= "UI" line for icon theme:  "/usr/share/icons/Adwaita/96x96/ui/"
Invalid Context= "Legacy" line for icon theme:  "/usr/share/icons/Adwaita/256x256/legacy/"
Invalid Context= "Legacy" line for icon theme:  "/usr/share/icons/Adwaita/512x512/legacy/"
Invalid Context= "Legacy" line for icon theme:  "/usr/share/icons/Adwaita/scalable/legacy/"
Invalid Context= "UI" line for icon theme:  "/usr/share/icons/Adwaita/scalable/ui/"
[1]  + 3418 suspended (signal)  dolphin

I ran testparm as suggested from the first output. Here is what I got:

❯ testparm
Load smb config files from /etc/samba/smb.conf
Error loading services.

Not sure if it is related to this, but I am realising that the sound keys (mute and volume) do not work anymore.
Just to make sure there was no problem with the hardware, I restarted the laptop using a Manjaro Live USB, and everything worked fine.

Did you try cleaning the cache?

Have you installed kservice-git from AUR? If yes, why as it’s also available from Manjaro repos (different version though…) That’s most likely the reason for your crashes.

Did you try cleaning the cache?

Yes, with no avail. But thanks for the tip, cause I suspect that might be helpful in the future.

Yes, I realised I had kservice-git from AUR installed instead of kservice from the official repositories. I don’t know how I got it changed, but I supect it was because of some piece of software I installed at some stage.
I miserably failed to move back to kservice, even though I was trying to take care of all the dependencies. I got a very unstable system and since my connection to the Internet is limited at the time being, I decided to perform a fresh install of the operating system. Now everything works fine. Thanks for the support!
For people with a similar problem, @Wollie suggestion might be the solution, so keep an eye on that.

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UPDATE

As I mentioned before, I made a fresh install of Manjaro, and I just realised that the problem with the sound keys (volume and mute) was only partially solved. It works well until I play something with VLC. After that, those keys become irresponsive in the desktop environment. They only work if VLC is selected and playing, but there is no on-screen feedback. The “mute microfone” key stops working, as well.

Not sure if this is related to the issue, but when I play some music with VLC, two icons for Media Player appear in the top panel (I have a 13.5 KiB screenshot of that but, apparently, I am not allowed to embbed media in the post). They are somehow different, because in one the “Configure Media Player…” option brings a window with two panes, Panel View and Keyboard Shortcuts, while the other only has the Keyboard Shortcuts one.

Any idea on how to solve these issues?

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