Why isn't the "Message display" shown in the foreground, but is covered by picture objects?
In the template a message display has been configured for displaying the system and operation messages. When a message is displayed, it is displayed in the current picture without the message area being brought to the foreground. The message display remains in the background and therefore cannot be read properly, because the display of the current picture and the message display overlap.
It would be desirable to have the message area in the foreground of the current picture (regardless of which picture is active).
Instead of configuring the message display in the template you should configure an alarm window with the option "Automatic display".