Permissions relevant to Livechat are all reset back to default after server restart

In my observation, the following granted permissions were always reset back to default on every restart. Thus, all modification were lost (revoking the permissions).

  • view-l-room
  • view-livechat-manager
  • close-livechat-room
  • close-others-livechat-room
  • save-others-livechat-room-info
  • remove-closed-livechat-rooms
  • view-livechat-analytics

This issue caused the administrative page’s behavior a bit confused/inconsistent. Do you know what were the reasons behind for that?

Thank you in advance for your information!