Hello. When running Xnview MP installed with x64 .deb package or from .tar.gz version a "Segmentation fault" occurs, but with AppImage it's working without problem.
I use MX Linux 19.1 based in Debian Buster with the original kernels of the distribution:
Linux mx 4.19.0-6-amd64 #1 SMP Debian 4.19 ...