big sur – my Launchbad broken after installing cDock

I am using MacOS Big Sur 11.3 Beta (20E5217a)

after installing cDock and putting into Apps folder and then running it, my LaunchPad turned to like the image belowbroken dashboard

it only contains 4 items on each page

i tried things below:

  • dragging them into grid
  • uninstalling with AppCleaner and reboot,
  • changing screen resolution
  • using commands below to restart dashboard
defaults write mcx-disabled -boolean YES && killall Dock
defaults write mcx-disabled -boolean NO && killall Dock

non of them worked