https://bugzilla.redhat.com/show_bug.cgi?id=1948197
--- Comment #15 from fujiwara tfujiwar@redhat.com --- Does your home directory mount a different partition?
ibus engines including ibus-anthy runs `ibus write-cache --system` in the postscript, which runs sub-scripts in /usr/share/ibus/*.xml internally, and updates /var/cache/ibus/bus/registry file. E.g. /usr/share/ibus/anthy.xml runs `/usr/libexec/ibus-engine-anthy --xml` which loads /usr/share/ibus/anthy.xml and /usr/share/ibus-anthy/engine/default.xml .
`ibus write-cache --system` checks the time stamps of /var/cache/ibus/bus/registry and $HOME/.cache/ibus/bus/registry. Maybe the home is /home/liveuser .