I was using pspp and detected this bug. I was told to report this bug, with the following information.
proximate cause: Segmentation Violation
version: GNU pspp 2.0.0-g5b54d1
host_system: x86_64-w64-mingw32
build_system: x86_64-pc-linux-gnu
locale_dir: E:\New folder/share/locale
compiler version: 10-win32 20210110
I was computing a variable, and I pressed the cross (x) button to close the window, before I had completely filled it.