I found a very interesting bug in using Dash to dock. In some specific cases, there will be two Docks, such as a lock screen interface and an application switching interface. Although it is not conflicting, it is not good. So it is necessary to solve him.

When a bug occurs:

I use the dock below, the dock that comes with the system on the left. The specific cause of the conflict has not been found, but it should be that the Dash to dock setting takes over the system's dock settings. When you open Dash to dock, it causes double docks.

The specific solution is to turn off the Dash to dock switch to solve the problem. Your personalization of the dock will not change anything because of your closure.

eof