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Leap 42.1 is old/out-dated and end-of-life since over a year.
See https://en.opensuse.org/Lifetime
Upgrade to the latest version, 42.3, or maybe even 15.0 which is to be released in the next days.
Maybe this helps.

Btw, you're in the wrong section of the forum, Brainstorm is for suggesting new features.
But your problem is likely unrelated to KDE anyway.