We are aware of at least another smaller bug when changing translucency settings, but that does not require a session restart.
In the very near future we will also remove the option "Apply translucency only to decoration" since it has been broken for 10+ years and fixing it would require considerable effort, which we deemed not worth it.
In the very near future we will also remove the option "Apply translucency only to decoration" since it has been broken for 10+ years and fixing it would require considerable effort, which we deemed not worth it.