Discover immediately crashes; won't open

A bit of a noob here; so apologies if this is unclear: In a nutshell, Discover crashes before opening; i.e. via 'plasma-discover' w/ terminal, taskbar updates icon, or start menu. What I've found so far is: plasma-discover consistently crashes with a segmentation fault (SIGSEGV), the PackageKit backend is being discarded as invalid: "org.kde.plasma.libdiscover: Discarding invalid backend "packagekit-backend", QML binding loop errors...
...in plasma-discover package version 6.2.1-1.fc40.x86_64.
I have tried many of the more obvious fixes for this; but alas, nothing has worked.
Manual workarounds for updates aside, my OCD can't tolerate malfunction - any tips or suggestions would be greatly appreciated 😉
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