Themes can't change in settings at all when changed on KDE Plasma Desktop until closed and reopened

(#363) Bug Awaiting confirmation desktop theming

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Comment by @PlatinumLucario
RexSystem 1 vote originally by @PlatinumLucario on GitHub OP
That option exists for me, though I do not have it enabled.
Definitely enable it and check if it causes the same issue in 6.5.5.