Since my upgrade to Kubuntu 17.04 from the previous 16.10 version, I've noticed quite a few small problems (mostly annoying, but not too serious) with Plasma 5.9.4 -- or, at least I assume the problem is with Plasma.

These include the text on title bars disappearing when the window is shaded, and sometimes windows will end up with their title bars above the top of the window (off-screen), so I'll have to go down to the bottom panel to move them down...

Worse yet, though, the bottom panel sometimes stops responding altogether, and I'll have to force a restart of Plasma from the console.

I'm also having a problem in Krusader and sometimes other programs where the KIO backend stops working (getting the "the process for the file protocol died unexpectedly" error). Logging out and back in solves this problem though, but it's still annoying.

It seems as if Plasma 5.9.4 still has a few bugs that need to be hammered out. I hope KDE releases some bugfixes soon. Meanwhile, does anyone have any idea on what to do about these issues, if possible?

Can you do a clean install of Kubuntu version 17.04 ?

Hmm. Yeah, I can, and I probably should, as it's been a few releases since I've done a fresh install of Kubuntu. Isn't it possible that problems may arise with multiple upgrades, one after the other? I don't think I've done a clean install since 15.10.

I'll see if that resolves the issues I have...