Could you try ‘wipe storage’ and ‘cache’ under ‘settings/apps/BlissLauncher’ ? Could be that the y come back, when you haven’t unistalled them. But than you lost all your personal settings in Bliss like folders and so on.
Hello, there is a bug that can easily occur when you move an icon. The icon can disappear, but you just have to quit the ‘moving icon to delete apps’ mode and re enter it by a long press on an icon.
Maybe it’s not what occured to you but other people might face this situation.