Hmm this issue sounds familiar for some reason, I’ll see if I can dig up a similar thread, I feel like this came up maybe 6 months or so ago.
(Nevermind, I was thinking of this, but seems irrelevant: Paste/undo bug in Brave Browser)
In the meantime @kenj74,
Were you provided any links to previous threads or issue reports that we could look at?
This Reddit thread is a little older, but does any of it look similar to what you’re seeing? https://www.reddit.com/r/kde/comments/oxww24/kde_copy_paste_still_broken/
Also, you mentioned cut and paste, but does the issue also affect copy?
Is it only when you try pasting back into Brave, or does pasting into another app (such as a text editor) work?
What if you copy from a text editor, then try to paste into Brave?
Is it only an issue using keyboard shortcuts, or do the right-click Cut/Copy/Paste work?
What website and form field are you testing with (any 1 example should do)?
In what browsers does it work? Firefox? Chromium? Chrome?