During the game ending sequence of Zak McKracken - the game will "freeze" (the animation stops although the music keeps playing) and does not show the epilogue text.

If played through SCUMM VM, then it works as it should.

Video of the game being played in DOSBOX showing the game ending freeze:
https://youtu.be/4zzg-A_urJI?t=8520

Video of the game being played in SCUMM VM showing the full ending as it should be:
https://youtu.be/AmFsUdHiiWo?t=1894