Errors and problems in Ubuntu DDE 20.04.2 (update)

    1. 2021
      Errors and glitches in the interface:
      Periodically, when you launch some windows, black frames appear around
      When installing more than 2 keyboard layouts, there is no layout indicator
      When applications are launched, the graphic part of the desktop image or another application appears in the window

Failure in components:

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