Build 1.8.0 introduced a couple of major changes to Sandboxie's inner mechanics, all preset access directives have been moved to template entries. Sandboxie now fully isolates the NT namespace, reducing the potential attack surface.
Build 1.8.2 improves the browsers and Electron apps compatibility quite a bit, it also adds a new web browser compatibility Template wizard allowing to create templates for previously unknown Chromium and Firefox (gecko) based browsers.
Please review the full Changelog thoroughly as it documents a bunch of new options which allow to control the new compatibility mechanisms and in case of unexpected issues will help to mitigate them.