Package: hatari Version: 2.2.0+dfsg-1 Hatari release v2.2 has buggy UNPK instruction emulation, which is a regression from the previous release.
Hatari v2.2.1 with the regression fix was released week later: https://git.tuxfamily.org/hatari/hatari.git/log/?h=v2.2.1 Please update Hatari v2.2 to v2.2.1.