Error: Lines on the game screen UE 5.1

[EhOpranD]

When I pack my game and launch it, lines appear on the screen

I’ve tried on other computers and the same problem occurs.

*Detail, this error does not appear in the editor

[ClockworkOcean]

You need to turn on vsync. Console command

r.Vsync=1

[EhOpranD]

I did this, but it didn’t change anything, I packed it twice to be sure, but nothing

[ClockworkOcean]

You have to run the command in the packaged game. Is that what you’re doing?

[EhOpranD]

I added the console variable r.Vsync=1 in the DefaultEngine.ini IIRC file in the rendering section.
It worked perfectly!