ZDoom

I tested Raze 1.0.2 and the bug seems to be fixed now.

Should be fixed now, I did a major rewrite on the timing code for these screens. This had several problems.
Waiting for confirmation before closing the report.

I tried Raze 1.0.1 and the latest DRD team build "raze-x64-0.8.0_beta-264-gc8c8635b4" and the bug is still present

It seems that aborting an intermission that has already ended will only create greater problems. I now blocked it entirely but I'm not fast enough to check. Once a new devbuild is available, can anyone of you please check?

I checked and can confirm that this bug exists.

1.) Start up Duke3D.
2.) Cheat your way to the end of a level so the intermission screen pops up.
3.) Press ESC on the intermission screen.

If you do this while the intermission sequence is still printing text to the screen, the menu will pop up over the top of the menu and all is well. If you do it after all the text is printed, the "LEVEL NAME COMPLETED" text will vanish and the engine will freeze up.