systemsettings5>desktop behavior>desktop effects>desktop cube settings. in the basic tab, toggle the windows hover above cube then hit okay and the settings will take hold. Then toggle the setting again and this time it will not take hold and will be ignored until systemsettings5 is closed and reopened. Reproducible: Always
cannot reproduce, works fine for me.
I also can't reproduce it. If you're still able to reproduce it, please reopen this bug report.