I found that the previous April Fool's Day map and the latest characters have different effects, such as engineers, as we all know, the April Fool's Day map drill tunnel is not out after going in (you can come out after a meeting).

The picture shows the negative scene in the April Fool's Day map after the engineer enters the vent time limit after the vent time limit reaches the future
So there is a figure where the engineer drilled the tunnel after the time limit becomes negative.
So I waited for the situation as shown in the picture and wrapped the line.
And since there is no network, there is a normal situation as shown in the figure.
And since the April Fool's Day map was previously updated, there is a picture of although the taskbar shows that this task is done on the engine, but it is actually an abnormal situation in the lower engine, and I found that the April Fool's Day map does not clean the pipe task.
And also because the April Fool's Day map was there in the past, so there is a meeting background like this without background obscuration.
As shown in the figure, the meeting background of the first map under normal circumstances is obscured by the background.
April Fool's Day will also cause the name of the first map to change, the icon of the first map in the search game interface will mirror but the map when creating the room is not mirrored, as shown in the picture is the April Fool's Day map that changed the name, although the other rooms are also this name after entering, but if the homeowner does not meet the conditions when creating the room, after loading the game, it will not be the first map of April Fool's Day but the normal first map.