Control Center icons sometimes mixed up

[TimeTraveler7]

I use FlipControlCenter and FlipLaunch tweaks to rearrange shortcuts in iPhone's control center, as well as add shortcut buttons to apps of my choice. Sometimes the icons/switches (on both "shelves") get messed up -- e.g. an empty space where an icon should be, or a repeated icon from another shortcut etc. The touch functionality still remains intact (you do have to remember the position...), just the display of icons is garbled.
Did anyone else notice this? Is it a bug in FlipControlCenter perhaps?