Using the latest development version, under endeavourOS (arch Linux): TST: PROMPT="%B: %2c %w %T%(#.#.)%b; " autoload -U compinit compinit -u zsh -f . ./TST xxx /usr/lib/libpy libpyldb-util.cpython-310-x86-64-linux-gnu.so@ libpytalloc-util.cpython-310-x86-64-linux-gnu.so.2.3.3* libpyldb-util.cpython-310-x86-64-linux-gnu.so.2@ libpython3.10.so@ libpyldb-util.cpython-310-x86-64-linux-gnu.so.2.4.1* libpython3.10.so.1.0* libpytalloc-util.cpython-310-x86-64-linux-gnu.so@ libpython3.so* libpytalloc-util.cpython-310-x86-64-linux-gnu.so.2@ ls /usr/lib/libpyzsh: segmentation fault (core dumped) /opt/bin/zsh -f I have been unable to generate a core file. Regards, Vin