/usr/lib/x86_64-linux-gnu/libepc-ui-1.0.so is in libepc-ui-dev 0.4.6-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libepc-ui-1.0.so.3.0.0
/usr/lib/x86_64-linux-gnu/libepc-ui-1.0.so.3.0.0