Strange translucency/tinting issue with panel tooltips at 100% displa scale

For some reason, at least on Fedora Kinoite with Plasma 6.6.4, popups seem to be tinted weirdly (or rather, don’t seem to have tinting at all, just blurring). Can’t seem to find this on the KDE Bugzilla, and it seemed to show fine on a separate machine running KDE Linux with a 6.7 build, so I’m wondering what I should do about this?