Solved Fedora KDE Wayland clipboard issue

[nolim]

Hi everyone,
I'm running into a frustrating clipboard issue on Fedora with KDE Plasma (Wayland) and could use some help troubleshooting.

The Problem
When I copy text (using Ctrl+C or Right-click > Copy), I cannot paste it. Right-click > Paste or Ctrl+V just pastes nothing.
If I look at the KDE clipboard history widget, I can actually see the copied text listed, but it is always preceded by an empty token.

Testing from the terminal:
If I test this using wl-clipboard, the paste output is completely empty:

wl-copy 1234
wl-paste

What DOES work (Primary Selection):
Middle-click pasting works perfectly fine, but only for text that is currently highlighted/selected (Primary Selection).

Settings I've already checked:
In the KDE Clipboard configuration, I currently have "Keep selection and clipboard the same" UNCHECKED.If I actually check this option, the standard clipboard still doesn't work, and it breaks my middle-click functionality too.

Has anyone run into this specific empty token loop on Wayland or know what might be intercepting the standard clipboard buffer?
Any pointers would be highly appreciated!
I'm pretty sure, it worked in the past.

 

[KGIII]

Well, that's one I've never heard of. I'll go ahead and assume that SHIFT + INSERT is also broken.

What I'd like to know is if this is an OS issue, or an issue with just your computer -- perhaps due to some conflicting software or whatnot.

To that end, do you still have the USB flash drive that you used to install your OS? If so, can you take a few minutes to boot to that live environment? While you're there, you can see if it's working properly in the live environment.

 

[nolim]

Thank you for the suggestion. It indeed worked in the Live USB.
I struggled to find what was the difference. It was kdeconnect. This app syncs the clipboard across devices.
Running:

pkill kdeconnect

Solved the issue. Running kdeconnect app caused the issue again.

I just removed the clipboard sync + virtual keyboard control from other device and I could use kdeconnect without an issue.